Home / 819,722.92-1,131,218.68-452,191.76

Finding the Fourth Proportional to 819,722.92, 1,131,218.68 and 452,191.76

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Solution

The fourth proportional to 819,722.92, 1,131,218.68 and 452,191.76 is: 624,025.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,722.92 : 1,131,218.68 = 452,191.76 : x
  2. Step 2: Convert to fraction form
    819,722.92/1,131,218.68 = 452,191.76/x
  3. Step 3: Cross multiply
    819,722.92x = 1,131,218.68 × 452,191.76
  4. Step 4: Simplify right side
    819,722.92x = 511,527,765,854.08
  5. Step 5: Solve for x
    x = 511,527,765,854.08/819,722.92
  6. Step 6: Final answer
    x = 624,025.21

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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.