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Finding the Fourth Proportional to 1,194,404.86, 1,787,397.90 and 745,337.26

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Solution

The fourth proportional to 1,194,404.86, 1,787,397.90 and 745,337.26 is: 1,115,379.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,194,404.86 : 1,787,397.90 = 745,337.26 : x
  2. Step 2: Convert to fraction form
    1,194,404.86/1,787,397.90 = 745,337.26/x
  3. Step 3: Cross multiply
    1,194,404.86x = 1,787,397.90 × 745,337.26
  4. Step 4: Simplify right side
    1,194,404.86x = 1,332,214,253,315.75
  5. Step 5: Solve for x
    x = 1,332,214,253,315.75/1,194,404.86
  6. Step 6: Final answer
    x = 1,115,379.13

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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.