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Finding the Fourth Proportional to 372,165.55, 513,704.09 and 295,820.11

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Solution

The fourth proportional to 372,165.55, 513,704.09 and 295,820.11 is: 408,323.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,165.55 : 513,704.09 = 295,820.11 : x
  2. Step 2: Convert to fraction form
    372,165.55/513,704.09 = 295,820.11/x
  3. Step 3: Cross multiply
    372,165.55x = 513,704.09 × 295,820.11
  4. Step 4: Simplify right side
    372,165.55x = 151,963,996,363.63
  5. Step 5: Solve for x
    x = 151,963,996,363.63/372,165.55
  6. Step 6: Final answer
    x = 408,323.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.