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Finding the Fourth Proportional to 840,856.68, 1,160,385.48 and 458,892

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Solution

The fourth proportional to 840,856.68, 1,160,385.48 and 458,892 is: 633,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,856.68 : 1,160,385.48 = 458,892 : x
  2. Step 2: Convert to fraction form
    840,856.68/1,160,385.48 = 458,892/x
  3. Step 3: Cross multiply
    840,856.68x = 1,160,385.48 × 458,892
  4. Step 4: Simplify right side
    840,856.68x = 532,491,613,688.16
  5. Step 5: Solve for x
    x = 532,491,613,688.16/840,856.68
  6. Step 6: Final answer
    x = 633,272.74

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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.