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Finding the Fourth Proportional to 5,177,754.16, 7,766,627.16 and 1,391,237.04

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Solution

The fourth proportional to 5,177,754.16, 7,766,627.16 and 1,391,237.04 is: 2,086,854.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,177,754.16 : 7,766,627.16 = 1,391,237.04 : x
  2. Step 2: Convert to fraction form
    5,177,754.16/7,766,627.16 = 1,391,237.04/x
  3. Step 3: Cross multiply
    5,177,754.16x = 7,766,627.16 × 1,391,237.04
  4. Step 4: Simplify right side
    5,177,754.16x = 10,805,219,380,862.01
  5. Step 5: Solve for x
    x = 10,805,219,380,862.01/5,177,754.16
  6. Step 6: Final answer
    x = 2,086,854.46

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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.