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Finding the Fourth Proportional to 410,076.20, 615,114.30 and 335,280.80

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Solution

The fourth proportional to 410,076.20, 615,114.30 and 335,280.80 is: 502,921.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,076.20 : 615,114.30 = 335,280.80 : x
  2. Step 2: Convert to fraction form
    410,076.20/615,114.30 = 335,280.80/x
  3. Step 3: Cross multiply
    410,076.20x = 615,114.30 × 335,280.80
  4. Step 4: Simplify right side
    410,076.20x = 206,236,014,595.44
  5. Step 5: Solve for x
    x = 206,236,014,595.44/410,076.20
  6. Step 6: Final answer
    x = 502,921.20

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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.