Home / 861,729.51-1,189,249.95-616,737.27

Finding the Fourth Proportional to 861,729.51, 1,189,249.95 and 616,737.27

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Solution

The fourth proportional to 861,729.51, 1,189,249.95 and 616,737.27 is: 851,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,729.51 : 1,189,249.95 = 616,737.27 : x
  2. Step 2: Convert to fraction form
    861,729.51/1,189,249.95 = 616,737.27/x
  3. Step 3: Cross multiply
    861,729.51x = 1,189,249.95 × 616,737.27
  4. Step 4: Simplify right side
    861,729.51x = 733,454,767,510.64
  5. Step 5: Solve for x
    x = 733,454,767,510.64/861,729.51
  6. Step 6: Final answer
    x = 851,142.68

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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.