Home / 868,326.76-1,198,314.30-486,345.16

Finding the Fourth Proportional to 868,326.76, 1,198,314.30 and 486,345.16

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Solution

The fourth proportional to 868,326.76, 1,198,314.30 and 486,345.16 is: 671,169.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,326.76 : 1,198,314.30 = 486,345.16 : x
  2. Step 2: Convert to fraction form
    868,326.76/1,198,314.30 = 486,345.16/x
  3. Step 3: Cross multiply
    868,326.76x = 1,198,314.30 × 486,345.16
  4. Step 4: Simplify right side
    868,326.76x = 582,794,359,963.79
  5. Step 5: Solve for x
    x = 582,794,359,963.79/868,326.76
  6. Step 6: Final answer
    x = 671,169.41

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Double scale
Find fourth proportional to 868,327.76, 1,198,315.68 and 486,346.16
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.