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Finding the Fourth Proportional to 653,605.39, 980,417.20 and 173,841.38

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Solution

The fourth proportional to 653,605.39, 980,417.20 and 173,841.38 is: 260,764.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,605.39 : 980,417.20 = 173,841.38 : x
  2. Step 2: Convert to fraction form
    653,605.39/980,417.20 = 173,841.38/x
  3. Step 3: Cross multiply
    653,605.39x = 980,417.20 × 173,841.38
  4. Step 4: Simplify right side
    653,605.39x = 170,437,079,023.74
  5. Step 5: Solve for x
    x = 170,437,079,023.74/653,605.39
  6. Step 6: Final answer
    x = 260,764.49

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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.