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Finding the Fourth Proportional to 625,812.48, 938,718.72 and 251,748

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Solution

The fourth proportional to 625,812.48, 938,718.72 and 251,748 is: 377,622

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,812.48 : 938,718.72 = 251,748 : x
  2. Step 2: Convert to fraction form
    625,812.48/938,718.72 = 251,748/x
  3. Step 3: Cross multiply
    625,812.48x = 938,718.72 × 251,748
  4. Step 4: Simplify right side
    625,812.48x = 236,320,560,322.56
  5. Step 5: Solve for x
    x = 236,320,560,322.56/625,812.48
  6. Step 6: Final answer
    x = 377,622

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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.