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Finding the Fourth Proportional to 550,475.40, 825,713.10 and 531,229.80

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Solution

The fourth proportional to 550,475.40, 825,713.10 and 531,229.80 is: 796,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,475.40 : 825,713.10 = 531,229.80 : x
  2. Step 2: Convert to fraction form
    550,475.40/825,713.10 = 531,229.80/x
  3. Step 3: Cross multiply
    550,475.40x = 825,713.10 × 531,229.80
  4. Step 4: Simplify right side
    550,475.40x = 438,643,404,970.38
  5. Step 5: Solve for x
    x = 438,643,404,970.38/550,475.40
  6. Step 6: Final answer
    x = 796,844.70

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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.