Home / 868,344.66-1,198,315.59-528,812.91

Finding the Fourth Proportional to 868,344.66, 1,198,315.59 and 528,812.91

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Solution

The fourth proportional to 868,344.66, 1,198,315.59 and 528,812.91 is: 729,761.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,344.66 : 1,198,315.59 = 528,812.91 : x
  2. Step 2: Convert to fraction form
    868,344.66/1,198,315.59 = 528,812.91/x
  3. Step 3: Cross multiply
    868,344.66x = 1,198,315.59 × 528,812.91
  4. Step 4: Simplify right side
    868,344.66x = 633,684,754,246.27
  5. Step 5: Solve for x
    x = 633,684,754,246.27/868,344.66
  6. Step 6: Final answer
    x = 729,761.79

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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.