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Finding the Fourth Proportional to 312,583, 431,364.72 and 169,344.04

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Solution

The fourth proportional to 312,583, 431,364.72 and 169,344.04 is: 233,694.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,583 : 431,364.72 = 169,344.04 : x
  2. Step 2: Convert to fraction form
    312,583/431,364.72 = 169,344.04/x
  3. Step 3: Cross multiply
    312,583x = 431,364.72 × 169,344.04
  4. Step 4: Simplify right side
    312,583x = 73,049,044,398.27
  5. Step 5: Solve for x
    x = 73,049,044,398.27/312,583
  6. Step 6: Final answer
    x = 233,694.87

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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.