Home / 445,839.20-615,258.04-254,856.72

Finding the Fourth Proportional to 445,839.20, 615,258.04 and 254,856.72

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Solution

The fourth proportional to 445,839.20, 615,258.04 and 254,856.72 is: 351,702.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,839.20 : 615,258.04 = 254,856.72 : x
  2. Step 2: Convert to fraction form
    445,839.20/615,258.04 = 254,856.72/x
  3. Step 3: Cross multiply
    445,839.20x = 615,258.04 × 254,856.72
  4. Step 4: Simplify right side
    445,839.20x = 156,802,646,028.03
  5. Step 5: Solve for x
    x = 156,802,646,028.03/445,839.20
  6. Step 6: Final answer
    x = 351,702.24

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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.