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Finding the Fourth Proportional to 513,342.04, 769,371.54 and 247,031.05

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Solution

The fourth proportional to 513,342.04, 769,371.54 and 247,031.05 is: 370,237.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,342.04 : 769,371.54 = 247,031.05 : x
  2. Step 2: Convert to fraction form
    513,342.04/769,371.54 = 247,031.05/x
  3. Step 3: Cross multiply
    513,342.04x = 769,371.54 × 247,031.05
  4. Step 4: Simplify right side
    513,342.04x = 190,058,659,366.32
  5. Step 5: Solve for x
    x = 190,058,659,366.32/513,342.04
  6. Step 6: Final answer
    x = 370,237.86

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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.