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Finding the Fourth Proportional to 584,649.60, 876,916.96 and 396,319.76

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Solution

The fourth proportional to 584,649.60, 876,916.96 and 396,319.76 is: 594,440.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,649.60 : 876,916.96 = 396,319.76 : x
  2. Step 2: Convert to fraction form
    584,649.60/876,916.96 = 396,319.76/x
  3. Step 3: Cross multiply
    584,649.60x = 876,916.96 × 396,319.76
  4. Step 4: Simplify right side
    584,649.60x = 347,539,519,127.13
  5. Step 5: Solve for x
    x = 347,539,519,127.13/584,649.60
  6. Step 6: Final answer
    x = 594,440.70

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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.