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Finding the Fourth Proportional to 404,531.90, 558,251.64 and 234,762.38

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Solution

The fourth proportional to 404,531.90, 558,251.64 and 234,762.38 is: 323,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,531.90 : 558,251.64 = 234,762.38 : x
  2. Step 2: Convert to fraction form
    404,531.90/558,251.64 = 234,762.38/x
  3. Step 3: Cross multiply
    404,531.90x = 558,251.64 × 234,762.38
  4. Step 4: Simplify right side
    404,531.90x = 131,056,480,854.05
  5. Step 5: Solve for x
    x = 131,056,480,854.05/404,531.90
  6. Step 6: Final answer
    x = 323,970.70

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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.