Home / 991,228.56-1,367,901.96-538,519.44

Finding the Fourth Proportional to 991,228.56, 1,367,901.96 and 538,519.44

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Solution

The fourth proportional to 991,228.56, 1,367,901.96 and 538,519.44 is: 743,160.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,228.56 : 1,367,901.96 = 538,519.44 : x
  2. Step 2: Convert to fraction form
    991,228.56/1,367,901.96 = 538,519.44/x
  3. Step 3: Cross multiply
    991,228.56x = 1,367,901.96 × 538,519.44
  4. Step 4: Simplify right side
    991,228.56x = 736,641,797,474.10
  5. Step 5: Solve for x
    x = 736,641,797,474.10/991,228.56
  6. Step 6: Final answer
    x = 743,160.38

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1.5x scale

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.