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Finding the Fourth Proportional to 260,686.76, 359,562.22 and 239,245.76

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Solution

The fourth proportional to 260,686.76, 359,562.22 and 239,245.76 is: 329,988.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,686.76 : 359,562.22 = 239,245.76 : x
  2. Step 2: Convert to fraction form
    260,686.76/359,562.22 = 239,245.76/x
  3. Step 3: Cross multiply
    260,686.76x = 359,562.22 × 239,245.76
  4. Step 4: Simplify right side
    260,686.76x = 86,023,736,591.19
  5. Step 5: Solve for x
    x = 86,023,736,591.19/260,686.76
  6. Step 6: Final answer
    x = 329,988.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.