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Finding the Fourth Proportional to 403,400.70, 604,179.45 and 237,512.70

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Solution

The fourth proportional to 403,400.70, 604,179.45 and 237,512.70 is: 355,726.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,400.70 : 604,179.45 = 237,512.70 : x
  2. Step 2: Convert to fraction form
    403,400.70/604,179.45 = 237,512.70/x
  3. Step 3: Cross multiply
    403,400.70x = 604,179.45 × 237,512.70
  4. Step 4: Simplify right side
    403,400.70x = 143,500,292,454.02
  5. Step 5: Solve for x
    x = 143,500,292,454.02/403,400.70
  6. Step 6: Final answer
    x = 355,726.43

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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.