Home / 868,919.28-1,198,766.51-542,042.07

Finding the Fourth Proportional to 868,919.28, 1,198,766.51 and 542,042.07

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Solution

The fourth proportional to 868,919.28, 1,198,766.51 and 542,042.07 is: 747,804.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,919.28 : 1,198,766.51 = 542,042.07 : x
  2. Step 2: Convert to fraction form
    868,919.28/1,198,766.51 = 542,042.07/x
  3. Step 3: Cross multiply
    868,919.28x = 1,198,766.51 × 542,042.07
  4. Step 4: Simplify right side
    868,919.28x = 649,781,877,816.87
  5. Step 5: Solve for x
    x = 649,781,877,816.87/868,919.28
  6. Step 6: Final answer
    x = 747,804.65

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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.