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Finding the Fourth Proportional to 401,150.31, 553,505.61 and 237,734.78

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Solution

The fourth proportional to 401,150.31, 553,505.61 and 237,734.78 is: 328,025.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,150.31 : 553,505.61 = 237,734.78 : x
  2. Step 2: Convert to fraction form
    401,150.31/553,505.61 = 237,734.78/x
  3. Step 3: Cross multiply
    401,150.31x = 553,505.61 × 237,734.78
  4. Step 4: Simplify right side
    401,150.31x = 131,587,534,322.30
  5. Step 5: Solve for x
    x = 131,587,534,322.30/401,150.31
  6. Step 6: Final answer
    x = 328,025.51

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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.