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Finding the Fourth Proportional to 408,506.68, 563,343.42 and 272,546.16

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Solution

The fourth proportional to 408,506.68, 563,343.42 and 272,546.16 is: 375,849.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,506.68 : 563,343.42 = 272,546.16 : x
  2. Step 2: Convert to fraction form
    408,506.68/563,343.42 = 272,546.16/x
  3. Step 3: Cross multiply
    408,506.68x = 563,343.42 × 272,546.16
  4. Step 4: Simplify right side
    408,506.68x = 153,537,085,882.27
  5. Step 5: Solve for x
    x = 153,537,085,882.27/408,506.68
  6. Step 6: Final answer
    x = 375,849.63

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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.