Home / 991,577.28-1,367,873.04-647,614.56

Finding the Fourth Proportional to 991,577.28, 1,367,873.04 and 647,614.56

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Solution

The fourth proportional to 991,577.28, 1,367,873.04 and 647,614.56 is: 893,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,577.28 : 1,367,873.04 = 647,614.56 : x
  2. Step 2: Convert to fraction form
    991,577.28/1,367,873.04 = 647,614.56/x
  3. Step 3: Cross multiply
    991,577.28x = 1,367,873.04 × 647,614.56
  4. Step 4: Simplify right side
    991,577.28x = 885,854,496,935.46
  5. Step 5: Solve for x
    x = 885,854,496,935.46/991,577.28
  6. Step 6: Final answer
    x = 893,379.18

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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.