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Finding the Fourth Proportional to 737,306.31, 1,105,959 and 421,541.79

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Solution

The fourth proportional to 737,306.31, 1,105,959 and 421,541.79 is: 632,312.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    737,306.31 : 1,105,959 = 421,541.79 : x
  2. Step 2: Convert to fraction form
    737,306.31/1,105,959 = 421,541.79/x
  3. Step 3: Cross multiply
    737,306.31x = 1,105,959 × 421,541.79
  4. Step 4: Simplify right side
    737,306.31x = 466,207,936,526.61
  5. Step 5: Solve for x
    x = 466,207,936,526.61/737,306.31
  6. Step 6: Final answer
    x = 632,312.42

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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.