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Finding the Fourth Proportional to 372,704.80, 559,057.20 and 329,159.20

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Solution

The fourth proportional to 372,704.80, 559,057.20 and 329,159.20 is: 493,738.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,704.80 : 559,057.20 = 329,159.20 : x
  2. Step 2: Convert to fraction form
    372,704.80/559,057.20 = 329,159.20/x
  3. Step 3: Cross multiply
    372,704.80x = 559,057.20 × 329,159.20
  4. Step 4: Simplify right side
    372,704.80x = 184,018,820,706.24
  5. Step 5: Solve for x
    x = 184,018,820,706.24/372,704.80
  6. Step 6: Final answer
    x = 493,738.80

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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.