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Finding the Fourth Proportional to 674,346.48, 930,616.92 and 372,559.92

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Solution

The fourth proportional to 674,346.48, 930,616.92 and 372,559.92 is: 514,143.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,346.48 : 930,616.92 = 372,559.92 : x
  2. Step 2: Convert to fraction form
    674,346.48/930,616.92 = 372,559.92/x
  3. Step 3: Cross multiply
    674,346.48x = 930,616.92 × 372,559.92
  4. Step 4: Simplify right side
    674,346.48x = 346,710,565,265.85
  5. Step 5: Solve for x
    x = 346,710,565,265.85/674,346.48
  6. Step 6: Final answer
    x = 514,143.06

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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.