Home / 853,721.40-1,280,803.52-454,033.52

Finding the Fourth Proportional to 853,721.40, 1,280,803.52 and 454,033.52

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Solution

The fourth proportional to 853,721.40, 1,280,803.52 and 454,033.52 is: 681,168.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,721.40 : 1,280,803.52 = 454,033.52 : x
  2. Step 2: Convert to fraction form
    853,721.40/1,280,803.52 = 454,033.52/x
  3. Step 3: Cross multiply
    853,721.40x = 1,280,803.52 × 454,033.52
  4. Step 4: Simplify right side
    853,721.40x = 581,527,730,613.99
  5. Step 5: Solve for x
    x = 581,527,730,613.99/853,721.40
  6. Step 6: Final answer
    x = 681,168.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.