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Finding the Fourth Proportional to 275,906.20, 413,312.55 and 243,028.30

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Solution

The fourth proportional to 275,906.20, 413,312.55 and 243,028.30 is: 364,060.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,906.20 : 413,312.55 = 243,028.30 : x
  2. Step 2: Convert to fraction form
    275,906.20/413,312.55 = 243,028.30/x
  3. Step 3: Cross multiply
    275,906.20x = 413,312.55 × 243,028.30
  4. Step 4: Simplify right side
    275,906.20x = 100,446,646,395.17
  5. Step 5: Solve for x
    x = 100,446,646,395.17/275,906.20
  6. Step 6: Final answer
    x = 364,060.85

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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.