Home / 515,728.22-773,417.14-178,690.20

Finding the Fourth Proportional to 515,728.22, 773,417.14 and 178,690.20

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Solution

The fourth proportional to 515,728.22, 773,417.14 and 178,690.20 is: 267,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,728.22 : 773,417.14 = 178,690.20 : x
  2. Step 2: Convert to fraction form
    515,728.22/773,417.14 = 178,690.20/x
  3. Step 3: Cross multiply
    515,728.22x = 773,417.14 × 178,690.20
  4. Step 4: Simplify right side
    515,728.22x = 138,202,062,983.30
  5. Step 5: Solve for x
    x = 138,202,062,983.30/515,728.22
  6. Step 6: Final answer
    x = 267,974.60

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1.5x scale

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.