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Finding the Fourth Proportional to 614,339.56, 847,718.51 and 356,162.68

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Solution

The fourth proportional to 614,339.56, 847,718.51 and 356,162.68 is: 491,463.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,339.56 : 847,718.51 = 356,162.68 : x
  2. Step 2: Convert to fraction form
    614,339.56/847,718.51 = 356,162.68/x
  3. Step 3: Cross multiply
    614,339.56x = 847,718.51 × 356,162.68
  4. Step 4: Simplify right side
    614,339.56x = 301,925,690,387.80
  5. Step 5: Solve for x
    x = 301,925,690,387.80/614,339.56
  6. Step 6: Final answer
    x = 491,463.86

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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.