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Finding the Fourth Proportional to 625,190.16, 862,761.24 and 338,718

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Solution

The fourth proportional to 625,190.16, 862,761.24 and 338,718 is: 467,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,190.16 : 862,761.24 = 338,718 : x
  2. Step 2: Convert to fraction form
    625,190.16/862,761.24 = 338,718/x
  3. Step 3: Cross multiply
    625,190.16x = 862,761.24 × 338,718
  4. Step 4: Simplify right side
    625,190.16x = 292,232,761,690.32
  5. Step 5: Solve for x
    x = 292,232,761,690.32/625,190.16
  6. Step 6: Final answer
    x = 467,430.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.