Home / 527,574.33-791,359.41-128,216.28

Finding the Fourth Proportional to 527,574.33, 791,359.41 and 128,216.28

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Solution

The fourth proportional to 527,574.33, 791,359.41 and 128,216.28 is: 192,323.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,574.33 : 791,359.41 = 128,216.28 : x
  2. Step 2: Convert to fraction form
    527,574.33/791,359.41 = 128,216.28/x
  3. Step 3: Cross multiply
    527,574.33x = 791,359.41 × 128,216.28
  4. Step 4: Simplify right side
    527,574.33x = 101,465,159,693.20
  5. Step 5: Solve for x
    x = 101,465,159,693.20/527,574.33
  6. Step 6: Final answer
    x = 192,323.91

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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.