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Finding the Fourth Proportional to 1,489,697.92, 2,235,655.44 and 731,946.16

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Solution

The fourth proportional to 1,489,697.92, 2,235,655.44 and 731,946.16 is: 1,098,463.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,489,697.92 : 2,235,655.44 = 731,946.16 : x
  2. Step 2: Convert to fraction form
    1,489,697.92/2,235,655.44 = 731,946.16/x
  3. Step 3: Cross multiply
    1,489,697.92x = 2,235,655.44 × 731,946.16
  4. Step 4: Simplify right side
    1,489,697.92x = 1,636,379,414,391.11
  5. Step 5: Solve for x
    x = 1,636,379,414,391.11/1,489,697.92
  6. Step 6: Final answer
    x = 1,098,463.92

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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.