Home / 868,328.32-1,198,338.24-486,332.80

Finding the Fourth Proportional to 868,328.32, 1,198,338.24 and 486,332.80

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Solution

The fourth proportional to 868,328.32, 1,198,338.24 and 486,332.80 is: 671,164.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,328.32 : 1,198,338.24 = 486,332.80 : x
  2. Step 2: Convert to fraction form
    868,328.32/1,198,338.24 = 486,332.80/x
  3. Step 3: Cross multiply
    868,328.32x = 1,198,338.24 × 486,332.80
  4. Step 4: Simplify right side
    868,328.32x = 582,791,191,606.27
  5. Step 5: Solve for x
    x = 582,791,191,606.27/868,328.32
  6. Step 6: Final answer
    x = 671,164.56

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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.