Home / 876,158.43-1,209,114.38-513,843.61

Finding the Fourth Proportional to 876,158.43, 1,209,114.38 and 513,843.61

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Solution

The fourth proportional to 876,158.43, 1,209,114.38 and 513,843.61 is: 709,113.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,158.43 : 1,209,114.38 = 513,843.61 : x
  2. Step 2: Convert to fraction form
    876,158.43/1,209,114.38 = 513,843.61/x
  3. Step 3: Cross multiply
    876,158.43x = 1,209,114.38 × 513,843.61
  4. Step 4: Simplify right side
    876,158.43x = 621,295,697,487.57
  5. Step 5: Solve for x
    x = 621,295,697,487.57/876,158.43
  6. Step 6: Final answer
    x = 709,113.41

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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.