Home / 868,959.35-1,199,165.38-486,986.13

Finding the Fourth Proportional to 868,959.35, 1,199,165.38 and 486,986.13

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Solution

The fourth proportional to 868,959.35, 1,199,165.38 and 486,986.13 is: 672,041.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,959.35 : 1,199,165.38 = 486,986.13 : x
  2. Step 2: Convert to fraction form
    868,959.35/1,199,165.38 = 486,986.13/x
  3. Step 3: Cross multiply
    868,959.35x = 1,199,165.38 × 486,986.13
  4. Step 4: Simplify right side
    868,959.35x = 583,976,906,418.71
  5. Step 5: Solve for x
    x = 583,976,906,418.71/868,959.35
  6. Step 6: Final answer
    x = 672,041.69

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Double scale
Find fourth proportional to 868,960.35, 1,199,166.76 and 486,987.13
Similar ratio
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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.