Home / 725,234.85-1,000,947.39-419,497.11

Finding the Fourth Proportional to 725,234.85, 1,000,947.39 and 419,497.11

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Solution

The fourth proportional to 725,234.85, 1,000,947.39 and 419,497.11 is: 578,977.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,234.85 : 1,000,947.39 = 419,497.11 : x
  2. Step 2: Convert to fraction form
    725,234.85/1,000,947.39 = 419,497.11/x
  3. Step 3: Cross multiply
    725,234.85x = 1,000,947.39 × 419,497.11
  4. Step 4: Simplify right side
    725,234.85x = 419,894,535,793.93
  5. Step 5: Solve for x
    x = 419,894,535,793.93/725,234.85
  6. Step 6: Final answer
    x = 578,977.33

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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.