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Finding the Fourth Proportional to 318,475.31, 477,263.68 and 248,042.03

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Solution

The fourth proportional to 318,475.31, 477,263.68 and 248,042.03 is: 371,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,475.31 : 477,263.68 = 248,042.03 : x
  2. Step 2: Convert to fraction form
    318,475.31/477,263.68 = 248,042.03/x
  3. Step 3: Cross multiply
    318,475.31x = 477,263.68 × 248,042.03
  4. Step 4: Simplify right side
    318,475.31x = 118,381,452,032.47
  5. Step 5: Solve for x
    x = 118,381,452,032.47/318,475.31
  6. Step 6: Final answer
    x = 371,713.12

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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.