Home / 861,675.86-1,189,151.49-479,726.58

Finding the Fourth Proportional to 861,675.86, 1,189,151.49 and 479,726.58

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Solution

The fourth proportional to 861,675.86, 1,189,151.49 and 479,726.58 is: 662,044.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,675.86 : 1,189,151.49 = 479,726.58 : x
  2. Step 2: Convert to fraction form
    861,675.86/1,189,151.49 = 479,726.58/x
  3. Step 3: Cross multiply
    861,675.86x = 1,189,151.49 × 479,726.58
  4. Step 4: Simplify right side
    861,675.86x = 570,467,577,399.60
  5. Step 5: Solve for x
    x = 570,467,577,399.60/861,675.86
  6. Step 6: Final answer
    x = 662,044.28

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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.