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Finding the Fourth Proportional to 543,691.86, 750,311.01 and 328,871.22

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Solution

The fourth proportional to 543,691.86, 750,311.01 and 328,871.22 is: 453,852.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,691.86 : 750,311.01 = 328,871.22 : x
  2. Step 2: Convert to fraction form
    543,691.86/750,311.01 = 328,871.22/x
  3. Step 3: Cross multiply
    543,691.86x = 750,311.01 × 328,871.22
  4. Step 4: Simplify right side
    543,691.86x = 246,755,697,238.13
  5. Step 5: Solve for x
    x = 246,755,697,238.13/543,691.86
  6. Step 6: Final answer
    x = 453,852.11

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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.