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Finding the Fourth Proportional to 653,605.89, 980,417.96 and 173,841.89

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Solution

The fourth proportional to 653,605.89, 980,417.96 and 173,841.89 is: 260,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,605.89 : 980,417.96 = 173,841.89 : x
  2. Step 2: Convert to fraction form
    653,605.89/980,417.96 = 173,841.89/x
  3. Step 3: Cross multiply
    653,605.89x = 980,417.96 × 173,841.89
  4. Step 4: Simplify right side
    653,605.89x = 170,437,705,385.05
  5. Step 5: Solve for x
    x = 170,437,705,385.05/653,605.89
  6. Step 6: Final answer
    x = 260,765.25

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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.