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Finding the Fourth Proportional to 625,471.98, 938,208 and 251,407.50

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Solution

The fourth proportional to 625,471.98, 938,208 and 251,407.50 is: 377,111.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,471.98 : 938,208 = 251,407.50 : x
  2. Step 2: Convert to fraction form
    625,471.98/938,208 = 251,407.50/x
  3. Step 3: Cross multiply
    625,471.98x = 938,208 × 251,407.50
  4. Step 4: Simplify right side
    625,471.98x = 235,872,527,760
  5. Step 5: Solve for x
    x = 235,872,527,760/625,471.98
  6. Step 6: Final answer
    x = 377,111.26

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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.