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Finding the Fourth Proportional to 708,653,283.20, 1,062,979,924.80 and 637,227,612.80

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Solution

The fourth proportional to 708,653,283.20, 1,062,979,924.80 and 637,227,612.80 is: 955,841,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,653,283.20 : 1,062,979,924.80 = 637,227,612.80 : x
  2. Step 2: Convert to fraction form
    708,653,283.20/1,062,979,924.80 = 637,227,612.80/x
  3. Step 3: Cross multiply
    708,653,283.20x = 1,062,979,924.80 × 637,227,612.80
  4. Step 4: Simplify right side
    708,653,283.20x = 677,360,159,934,627,456
  5. Step 5: Solve for x
    x = 677,360,159,934,627,456/708,653,283.20
  6. Step 6: Final answer
    x = 955,841,419.20

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Double scale
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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.