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Finding the Fourth Proportional to 531,450,489.60, 797,301,705.60 and 272,705,644.80

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Solution

The fourth proportional to 531,450,489.60, 797,301,705.60 and 272,705,644.80 is: 409,123,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,450,489.60 : 797,301,705.60 = 272,705,644.80 : x
  2. Step 2: Convert to fraction form
    531,450,489.60/797,301,705.60 = 272,705,644.80/x
  3. Step 3: Cross multiply
    531,450,489.60x = 797,301,705.60 × 272,705,644.80
  4. Step 4: Simplify right side
    531,450,489.60x = 217,428,675,725,787,776
  5. Step 5: Solve for x
    x = 217,428,675,725,787,776/531,450,489.60
  6. Step 6: Final answer
    x = 409,123,107.38

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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.