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Finding the Fourth Proportional to 531,441,672.60, 742,296,472.80 and 531,441,672.60

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Solution

The fourth proportional to 531,441,672.60, 742,296,472.80 and 531,441,672.60 is: 742,296,472.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,441,672.60 : 742,296,472.80 = 531,441,672.60 : x
  2. Step 2: Convert to fraction form
    531,441,672.60/742,296,472.80 = 531,441,672.60/x
  3. Step 3: Cross multiply
    531,441,672.60x = 742,296,472.80 × 531,441,672.60
  4. Step 4: Simplify right side
    531,441,672.60x = 394,487,279,069,912,384
  5. Step 5: Solve for x
    x = 394,487,279,069,912,384/531,441,672.60
  6. Step 6: Final answer
    x = 742,296,472.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.