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Finding the Fourth Proportional to 749,251.80, 1,123,877.70 and 749,251.80

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Solution

The fourth proportional to 749,251.80, 1,123,877.70 and 749,251.80 is: 1,123,877.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,251.80 : 1,123,877.70 = 749,251.80 : x
  2. Step 2: Convert to fraction form
    749,251.80/1,123,877.70 = 749,251.80/x
  3. Step 3: Cross multiply
    749,251.80x = 1,123,877.70 × 749,251.80
  4. Step 4: Simplify right side
    749,251.80x = 842,067,389,704.86
  5. Step 5: Solve for x
    x = 842,067,389,704.86/749,251.80
  6. Step 6: Final answer
    x = 1,123,877.70

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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.