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Finding the Fourth Proportional to 453,445.60, 680,168.40 and 204,613.60

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Solution

The fourth proportional to 453,445.60, 680,168.40 and 204,613.60 is: 306,920.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,445.60 : 680,168.40 = 204,613.60 : x
  2. Step 2: Convert to fraction form
    453,445.60/680,168.40 = 204,613.60/x
  3. Step 3: Cross multiply
    453,445.60x = 680,168.40 × 204,613.60
  4. Step 4: Simplify right side
    453,445.60x = 139,171,704,930.24
  5. Step 5: Solve for x
    x = 139,171,704,930.24/453,445.60
  6. Step 6: Final answer
    x = 306,920.40

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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.