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Finding the Fourth Proportional to 311,862.30, 467,793.45 and 292,179.30

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Solution

The fourth proportional to 311,862.30, 467,793.45 and 292,179.30 is: 438,268.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,862.30 : 467,793.45 = 292,179.30 : x
  2. Step 2: Convert to fraction form
    311,862.30/467,793.45 = 292,179.30/x
  3. Step 3: Cross multiply
    311,862.30x = 467,793.45 × 292,179.30
  4. Step 4: Simplify right side
    311,862.30x = 136,679,562,765.59
  5. Step 5: Solve for x
    x = 136,679,562,765.59/311,862.30
  6. Step 6: Final answer
    x = 438,268.95

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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.