Home / 527,619.95-791,424.08-128,261.10

Finding the Fourth Proportional to 527,619.95, 791,424.08 and 128,261.10

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Solution

The fourth proportional to 527,619.95, 791,424.08 and 128,261.10 is: 192,390.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,619.95 : 791,424.08 = 128,261.10 : x
  2. Step 2: Convert to fraction form
    527,619.95/791,424.08 = 128,261.10/x
  3. Step 3: Cross multiply
    527,619.95x = 791,424.08 × 128,261.10
  4. Step 4: Simplify right side
    527,619.95x = 101,508,923,067.29
  5. Step 5: Solve for x
    x = 101,508,923,067.29/527,619.95
  6. Step 6: Final answer
    x = 192,390.23

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1.5x scale

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.