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Finding the Fourth Proportional to 373,862.20, 560,015.70 and 311,654.20

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Solution

The fourth proportional to 373,862.20, 560,015.70 and 311,654.20 is: 466,833.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,862.20 : 560,015.70 = 311,654.20 : x
  2. Step 2: Convert to fraction form
    373,862.20/560,015.70 = 311,654.20/x
  3. Step 3: Cross multiply
    373,862.20x = 560,015.70 × 311,654.20
  4. Step 4: Simplify right side
    373,862.20x = 174,531,244,970.94
  5. Step 5: Solve for x
    x = 174,531,244,970.94/373,862.20
  6. Step 6: Final answer
    x = 466,833.09

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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.