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Finding the Fourth Proportional to 624,208.45, 861,407.66 and 337,728.52

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Solution

The fourth proportional to 624,208.45, 861,407.66 and 337,728.52 is: 466,065.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,208.45 : 861,407.66 = 337,728.52 : x
  2. Step 2: Convert to fraction form
    624,208.45/861,407.66 = 337,728.52/x
  3. Step 3: Cross multiply
    624,208.45x = 861,407.66 × 337,728.52
  4. Step 4: Simplify right side
    624,208.45x = 290,921,934,128.46
  5. Step 5: Solve for x
    x = 290,921,934,128.46/624,208.45
  6. Step 6: Final answer
    x = 466,065.36

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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.