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Finding the Fourth Proportional to 363,117.40, 544,092.90 and 342,122.20

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Solution

The fourth proportional to 363,117.40, 544,092.90 and 342,122.20 is: 512,633.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,117.40 : 544,092.90 = 342,122.20 : x
  2. Step 2: Convert to fraction form
    363,117.40/544,092.90 = 342,122.20/x
  3. Step 3: Cross multiply
    363,117.40x = 544,092.90 × 342,122.20
  4. Step 4: Simplify right side
    363,117.40x = 186,146,259,952.38
  5. Step 5: Solve for x
    x = 186,146,259,952.38/363,117.40
  6. Step 6: Final answer
    x = 512,633.82

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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.