Home / 991,614.38-1,368,389.30-538,895.66

Finding the Fourth Proportional to 991,614.38, 1,368,389.30 and 538,895.66

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Solution

The fourth proportional to 991,614.38, 1,368,389.30 and 538,895.66 is: 743,655.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,614.38 : 1,368,389.30 = 538,895.66 : x
  2. Step 2: Convert to fraction form
    991,614.38/1,368,389.30 = 538,895.66/x
  3. Step 3: Cross multiply
    991,614.38x = 1,368,389.30 × 538,895.66
  4. Step 4: Simplify right side
    991,614.38x = 737,419,054,960.44
  5. Step 5: Solve for x
    x = 737,419,054,960.44/991,614.38
  6. Step 6: Final answer
    x = 743,655.06

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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.