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Finding the Fourth Proportional to 503,780.40, 755,494.20 and 148,700.40

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Solution

The fourth proportional to 503,780.40, 755,494.20 and 148,700.40 is: 222,998.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,780.40 : 755,494.20 = 148,700.40 : x
  2. Step 2: Convert to fraction form
    503,780.40/755,494.20 = 148,700.40/x
  3. Step 3: Cross multiply
    503,780.40x = 755,494.20 × 148,700.40
  4. Step 4: Simplify right side
    503,780.40x = 112,342,289,737.68
  5. Step 5: Solve for x
    x = 112,342,289,737.68/503,780.40
  6. Step 6: Final answer
    x = 222,998.53

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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.