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Finding the Fourth Proportional to 265,719.60, 398,579.40 and 251,204.40

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Solution

The fourth proportional to 265,719.60, 398,579.40 and 251,204.40 is: 376,806.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,719.60 : 398,579.40 = 251,204.40 : x
  2. Step 2: Convert to fraction form
    265,719.60/398,579.40 = 251,204.40/x
  3. Step 3: Cross multiply
    265,719.60x = 398,579.40 × 251,204.40
  4. Step 4: Simplify right side
    265,719.60x = 100,124,899,029.36
  5. Step 5: Solve for x
    x = 100,124,899,029.36/265,719.60
  6. Step 6: Final answer
    x = 376,806.60

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Similar ratio
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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.