Home / 1,200,062.55-1,656,086.16-656,198.70

Finding the Fourth Proportional to 1,200,062.55, 1,656,086.16 and 656,198.70

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Solution

The fourth proportional to 1,200,062.55, 1,656,086.16 and 656,198.70 is: 905,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,062.55 : 1,656,086.16 = 656,198.70 : x
  2. Step 2: Convert to fraction form
    1,200,062.55/1,656,086.16 = 656,198.70/x
  3. Step 3: Cross multiply
    1,200,062.55x = 1,656,086.16 × 656,198.70
  4. Step 4: Simplify right side
    1,200,062.55x = 1,086,721,585,279.99
  5. Step 5: Solve for x
    x = 1,086,721,585,279.99/1,200,062.55
  6. Step 6: Final answer
    x = 905,554.12

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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.