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Finding the Fourth Proportional to 424,446.50, 585,819.38 and 243,279.88

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Solution

The fourth proportional to 424,446.50, 585,819.38 and 243,279.88 is: 335,773.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,446.50 : 585,819.38 = 243,279.88 : x
  2. Step 2: Convert to fraction form
    424,446.50/585,819.38 = 243,279.88/x
  3. Step 3: Cross multiply
    424,446.50x = 585,819.38 × 243,279.88
  4. Step 4: Simplify right side
    424,446.50x = 142,518,064,322.58
  5. Step 5: Solve for x
    x = 142,518,064,322.58/424,446.50
  6. Step 6: Final answer
    x = 335,773.92

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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.