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Finding the Fourth Proportional to 675,861.73, 932,689.46 and 369,939.65

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Solution

The fourth proportional to 675,861.73, 932,689.46 and 369,939.65 is: 510,516.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,861.73 : 932,689.46 = 369,939.65 : x
  2. Step 2: Convert to fraction form
    675,861.73/932,689.46 = 369,939.65/x
  3. Step 3: Cross multiply
    675,861.73x = 932,689.46 × 369,939.65
  4. Step 4: Simplify right side
    675,861.73x = 345,038,813,373.12
  5. Step 5: Solve for x
    x = 345,038,813,373.12/675,861.73
  6. Step 6: Final answer
    x = 510,516.87

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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.