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Finding the Fourth Proportional to 349,744.80, 524,617.20 and 330,061.80

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Solution

The fourth proportional to 349,744.80, 524,617.20 and 330,061.80 is: 495,092.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,744.80 : 524,617.20 = 330,061.80 : x
  2. Step 2: Convert to fraction form
    349,744.80/524,617.20 = 330,061.80/x
  3. Step 3: Cross multiply
    349,744.80x = 524,617.20 × 330,061.80
  4. Step 4: Simplify right side
    349,744.80x = 173,156,097,342.96
  5. Step 5: Solve for x
    x = 173,156,097,342.96/349,744.80
  6. Step 6: Final answer
    x = 495,092.70

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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.