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Finding the Fourth Proportional to 1,008,907,735.60, 1,513,361,603.40 and 619,467,770.80

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Solution

The fourth proportional to 1,008,907,735.60, 1,513,361,603.40 and 619,467,770.80 is: 929,201,656.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,907,735.60 : 1,513,361,603.40 = 619,467,770.80 : x
  2. Step 2: Convert to fraction form
    1,008,907,735.60/1,513,361,603.40 = 619,467,770.80/x
  3. Step 3: Cross multiply
    1,008,907,735.60x = 1,513,361,603.40 × 619,467,770.80
  4. Step 4: Simplify right side
    1,008,907,735.60x = 937,478,738,872,511,744
  5. Step 5: Solve for x
    x = 937,478,738,872,511,744/1,008,907,735.60
  6. Step 6: Final answer
    x = 929,201,656.20

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Double scale
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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.