Home / 861,972.22-1,189,521.66-499,606.27

Finding the Fourth Proportional to 861,972.22, 1,189,521.66 and 499,606.27

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Solution

The fourth proportional to 861,972.22, 1,189,521.66 and 499,606.27 is: 689,456.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,972.22 : 1,189,521.66 = 499,606.27 : x
  2. Step 2: Convert to fraction form
    861,972.22/1,189,521.66 = 499,606.27/x
  3. Step 3: Cross multiply
    861,972.22x = 1,189,521.66 × 499,606.27
  4. Step 4: Simplify right side
    861,972.22x = 594,292,479,636.81
  5. Step 5: Solve for x
    x = 594,292,479,636.81/861,972.22
  6. Step 6: Final answer
    x = 689,456.65

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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.