Home / 527,154.80-790,780.74-172,170.68

Finding the Fourth Proportional to 527,154.80, 790,780.74 and 172,170.68

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Solution

The fourth proportional to 527,154.80, 790,780.74 and 172,170.68 is: 258,271.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,154.80 : 790,780.74 = 172,170.68 : x
  2. Step 2: Convert to fraction form
    527,154.80/790,780.74 = 172,170.68/x
  3. Step 3: Cross multiply
    527,154.80x = 790,780.74 × 172,170.68
  4. Step 4: Simplify right side
    527,154.80x = 136,149,257,736.70
  5. Step 5: Solve for x
    x = 136,149,257,736.70/527,154.80
  6. Step 6: Final answer
    x = 258,271.87

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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.