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Finding the Fourth Proportional to 318,473.31, 477,260.69 and 248,040.03

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Solution

The fourth proportional to 318,473.31, 477,260.69 and 248,040.03 is: 371,710.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,473.31 : 477,260.69 = 248,040.03 : x
  2. Step 2: Convert to fraction form
    318,473.31/477,260.69 = 248,040.03/x
  3. Step 3: Cross multiply
    318,473.31x = 477,260.69 × 248,040.03
  4. Step 4: Simplify right side
    318,473.31x = 118,379,754,625.22
  5. Step 5: Solve for x
    x = 118,379,754,625.22/318,473.31
  6. Step 6: Final answer
    x = 371,710.13

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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.