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Finding the Fourth Proportional to 545,911.87, 753,414.44 and 328,191.03

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Solution

The fourth proportional to 545,911.87, 753,414.44 and 328,191.03 is: 452,937.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,911.87 : 753,414.44 = 328,191.03 : x
  2. Step 2: Convert to fraction form
    545,911.87/753,414.44 = 328,191.03/x
  3. Step 3: Cross multiply
    545,911.87x = 753,414.44 × 328,191.03
  4. Step 4: Simplify right side
    545,911.87x = 247,263,861,080.47
  5. Step 5: Solve for x
    x = 247,263,861,080.47/545,911.87
  6. Step 6: Final answer
    x = 452,937.32

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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.