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Finding the Fourth Proportional to 669,562.73, 924,143.69 and 440,141.21

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Solution

The fourth proportional to 669,562.73, 924,143.69 and 440,141.21 is: 607,491.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,562.73 : 924,143.69 = 440,141.21 : x
  2. Step 2: Convert to fraction form
    669,562.73/924,143.69 = 440,141.21/x
  3. Step 3: Cross multiply
    669,562.73x = 924,143.69 × 440,141.21
  4. Step 4: Simplify right side
    669,562.73x = 406,753,721,916.76
  5. Step 5: Solve for x
    x = 406,753,721,916.76/669,562.73
  6. Step 6: Final answer
    x = 607,491.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.