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Finding the Fourth Proportional to 1,566,747.42, 2,350,785.69 and 855,945.11

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Solution

The fourth proportional to 1,566,747.42, 2,350,785.69 and 855,945.11 is: 1,284,280.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,566,747.42 : 2,350,785.69 = 855,945.11 : x
  2. Step 2: Convert to fraction form
    1,566,747.42/2,350,785.69 = 855,945.11/x
  3. Step 3: Cross multiply
    1,566,747.42x = 2,350,785.69 × 855,945.11
  4. Step 4: Simplify right side
    1,566,747.42x = 2,012,143,504,259.55
  5. Step 5: Solve for x
    x = 2,012,143,504,259.55/1,566,747.42
  6. Step 6: Final answer
    x = 1,284,280.72

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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.