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Finding the Fourth Proportional to 957,672.60, 1,436,508.90 and 424,627.80

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Solution

The fourth proportional to 957,672.60, 1,436,508.90 and 424,627.80 is: 636,941.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,672.60 : 1,436,508.90 = 424,627.80 : x
  2. Step 2: Convert to fraction form
    957,672.60/1,436,508.90 = 424,627.80/x
  3. Step 3: Cross multiply
    957,672.60x = 1,436,508.90 × 424,627.80
  4. Step 4: Simplify right side
    957,672.60x = 609,981,613,887.42
  5. Step 5: Solve for x
    x = 609,981,613,887.42/957,672.60
  6. Step 6: Final answer
    x = 636,941.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.