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Finding the Fourth Proportional to 328,542.38, 453,385.85 and 190,734.10

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Solution

The fourth proportional to 328,542.38, 453,385.85 and 190,734.10 is: 263,211.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,542.38 : 453,385.85 = 190,734.10 : x
  2. Step 2: Convert to fraction form
    328,542.38/453,385.85 = 190,734.10/x
  3. Step 3: Cross multiply
    328,542.38x = 453,385.85 × 190,734.10
  4. Step 4: Simplify right side
    328,542.38x = 86,476,140,113.87
  5. Step 5: Solve for x
    x = 86,476,140,113.87/328,542.38
  6. Step 6: Final answer
    x = 263,211.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.