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Finding the Fourth Proportional to 316,463.98, 436,720.94 and 173,233.17

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Solution

The fourth proportional to 316,463.98, 436,720.94 and 173,233.17 is: 239,062.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,463.98 : 436,720.94 = 173,233.17 : x
  2. Step 2: Convert to fraction form
    316,463.98/436,720.94 = 173,233.17/x
  3. Step 3: Cross multiply
    316,463.98x = 436,720.94 × 173,233.17
  4. Step 4: Simplify right side
    316,463.98x = 75,654,552,841.58
  5. Step 5: Solve for x
    x = 75,654,552,841.58/316,463.98
  6. Step 6: Final answer
    x = 239,062.13

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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.