Home / 868,791.61-1,198,221.50-611,520.22

Finding the Fourth Proportional to 868,791.61, 1,198,221.50 and 611,520.22

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Solution

The fourth proportional to 868,791.61, 1,198,221.50 and 611,520.22 is: 843,397.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,791.61 : 1,198,221.50 = 611,520.22 : x
  2. Step 2: Convert to fraction form
    868,791.61/1,198,221.50 = 611,520.22/x
  3. Step 3: Cross multiply
    868,791.61x = 1,198,221.50 × 611,520.22
  4. Step 4: Simplify right side
    868,791.61x = 732,736,673,821.98
  5. Step 5: Solve for x
    x = 732,736,673,821.98/868,791.61
  6. Step 6: Final answer
    x = 843,397.50

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Double scale
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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.