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Finding the Fourth Proportional to 638,832.96, 875,191.50 and 614,902.32

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Solution

The fourth proportional to 638,832.96, 875,191.50 and 614,902.32 is: 842,406.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,832.96 : 875,191.50 = 614,902.32 : x
  2. Step 2: Convert to fraction form
    638,832.96/875,191.50 = 614,902.32/x
  3. Step 3: Cross multiply
    638,832.96x = 875,191.50 × 614,902.32
  4. Step 4: Simplify right side
    638,832.96x = 538,157,283,794.28
  5. Step 5: Solve for x
    x = 538,157,283,794.28/638,832.96
  6. Step 6: Final answer
    x = 842,406.88

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.