Home / 527,401.52-791,107.22-128,045.80

Finding the Fourth Proportional to 527,401.52, 791,107.22 and 128,045.80

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Solution

The fourth proportional to 527,401.52, 791,107.22 and 128,045.80 is: 192,069.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,401.52 : 791,107.22 = 128,045.80 : x
  2. Step 2: Convert to fraction form
    527,401.52/791,107.22 = 128,045.80/x
  3. Step 3: Cross multiply
    527,401.52x = 791,107.22 × 128,045.80
  4. Step 4: Simplify right side
    527,401.52x = 101,297,956,870.68
  5. Step 5: Solve for x
    x = 101,297,956,870.68/527,401.52
  6. Step 6: Final answer
    x = 192,069.90

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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.