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Finding the Fourth Proportional to 260,484.20, 359,123.60 and 187,826.30

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Solution

The fourth proportional to 260,484.20, 359,123.60 and 187,826.30 is: 258,951.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,484.20 : 359,123.60 = 187,826.30 : x
  2. Step 2: Convert to fraction form
    260,484.20/359,123.60 = 187,826.30/x
  3. Step 3: Cross multiply
    260,484.20x = 359,123.60 × 187,826.30
  4. Step 4: Simplify right side
    260,484.20x = 67,452,857,030.68
  5. Step 5: Solve for x
    x = 67,452,857,030.68/260,484.20
  6. Step 6: Final answer
    x = 258,951.82

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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.