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Finding the Fourth Proportional to 260,737.80, 391,106.70 and 254,905.80

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Solution

The fourth proportional to 260,737.80, 391,106.70 and 254,905.80 is: 382,358.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,737.80 : 391,106.70 = 254,905.80 : x
  2. Step 2: Convert to fraction form
    260,737.80/391,106.70 = 254,905.80/x
  3. Step 3: Cross multiply
    260,737.80x = 391,106.70 × 254,905.80
  4. Step 4: Simplify right side
    260,737.80x = 99,695,366,248.86
  5. Step 5: Solve for x
    x = 99,695,366,248.86/260,737.80
  6. Step 6: Final answer
    x = 382,358.70

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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.