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Finding the Fourth Proportional to 317,616.17, 438,304.82 and 174,375.18

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Solution

The fourth proportional to 317,616.17, 438,304.82 and 174,375.18 is: 240,634.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,616.17 : 438,304.82 = 174,375.18 : x
  2. Step 2: Convert to fraction form
    317,616.17/438,304.82 = 174,375.18/x
  3. Step 3: Cross multiply
    317,616.17x = 438,304.82 × 174,375.18
  4. Step 4: Simplify right side
    317,616.17x = 76,429,481,010.49
  5. Step 5: Solve for x
    x = 76,429,481,010.49/317,616.17
  6. Step 6: Final answer
    x = 240,634.73

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1.5x scale

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.