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Finding the Fourth Proportional to 363,142.20, 544,057.20 and 310,654.20

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Solution

The fourth proportional to 363,142.20, 544,057.20 and 310,654.20 is: 465,420.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,142.20 : 544,057.20 = 310,654.20 : x
  2. Step 2: Convert to fraction form
    363,142.20/544,057.20 = 310,654.20/x
  3. Step 3: Cross multiply
    363,142.20x = 544,057.20 × 310,654.20
  4. Step 4: Simplify right side
    363,142.20x = 169,013,654,220.24
  5. Step 5: Solve for x
    x = 169,013,654,220.24/363,142.20
  6. Step 6: Final answer
    x = 465,420.03

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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.