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Finding the Fourth Proportional to 1,008,907,818.90, 1,513,361,728.35 and 593,958,686.10

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Solution

The fourth proportional to 1,008,907,818.90, 1,513,361,728.35 and 593,958,686.10 is: 890,938,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,907,818.90 : 1,513,361,728.35 = 593,958,686.10 : x
  2. Step 2: Convert to fraction form
    1,008,907,818.90/1,513,361,728.35 = 593,958,686.10/x
  3. Step 3: Cross multiply
    1,008,907,818.90x = 1,513,361,728.35 × 593,958,686.10
  4. Step 4: Simplify right side
    1,008,907,818.90x = 898,874,343,764,791,040
  5. Step 5: Solve for x
    x = 898,874,343,764,791,040/1,008,907,818.90
  6. Step 6: Final answer
    x = 890,938,029.15

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Half scale
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Double scale
Find fourth proportional to 1,008,907,819.90, 1,513,361,729.85 and 593,958,687.10
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.