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Finding the Fourth Proportional to 653,691.60, 980,420.68 and 173,922.16

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Solution

The fourth proportional to 653,691.60, 980,420.68 and 173,922.16 is: 260,852.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,691.60 : 980,420.68 = 173,922.16 : x
  2. Step 2: Convert to fraction form
    653,691.60/980,420.68 = 173,922.16/x
  3. Step 3: Cross multiply
    653,691.60x = 980,420.68 × 173,922.16
  4. Step 4: Simplify right side
    653,691.60x = 170,516,882,374.27
  5. Step 5: Solve for x
    x = 170,516,882,374.27/653,691.60
  6. Step 6: Final answer
    x = 260,852.19

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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.