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Finding the Fourth Proportional to 648,818.80, 973,228.20 and 648,818.80

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Solution

The fourth proportional to 648,818.80, 973,228.20 and 648,818.80 is: 973,228.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,818.80 : 973,228.20 = 648,818.80 : x
  2. Step 2: Convert to fraction form
    648,818.80/973,228.20 = 648,818.80/x
  3. Step 3: Cross multiply
    648,818.80x = 973,228.20 × 648,818.80
  4. Step 4: Simplify right side
    648,818.80x = 631,448,752,850.16
  5. Step 5: Solve for x
    x = 631,448,752,850.16/648,818.80
  6. Step 6: Final answer
    x = 973,228.20

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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.