Home / 527,837.28-791,744.40-128,480.16

Finding the Fourth Proportional to 527,837.28, 791,744.40 and 128,480.16

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Solution

The fourth proportional to 527,837.28, 791,744.40 and 128,480.16 is: 192,717.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,837.28 : 791,744.40 = 128,480.16 : x
  2. Step 2: Convert to fraction form
    527,837.28/791,744.40 = 128,480.16/x
  3. Step 3: Cross multiply
    527,837.28x = 791,744.40 × 128,480.16
  4. Step 4: Simplify right side
    527,837.28x = 101,723,447,191.10
  5. Step 5: Solve for x
    x = 101,723,447,191.10/527,837.28
  6. Step 6: Final answer
    x = 192,717.44

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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.