Home / 868,535.84-1,198,499.28-486,578.72

Finding the Fourth Proportional to 868,535.84, 1,198,499.28 and 486,578.72

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Solution

The fourth proportional to 868,535.84, 1,198,499.28 and 486,578.72 is: 671,433.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,535.84 : 1,198,499.28 = 486,578.72 : x
  2. Step 2: Convert to fraction form
    868,535.84/1,198,499.28 = 486,578.72/x
  3. Step 3: Cross multiply
    868,535.84x = 1,198,499.28 × 486,578.72
  4. Step 4: Simplify right side
    868,535.84x = 583,164,245,583.32
  5. Step 5: Solve for x
    x = 583,164,245,583.32/868,535.84
  6. Step 6: Final answer
    x = 671,433.71

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Double scale
Find fourth proportional to 868,536.84, 1,198,500.66 and 486,579.72
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.