Home / 527,621.13-791,505.45-172,564.38

Finding the Fourth Proportional to 527,621.13, 791,505.45 and 172,564.38

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Solution

The fourth proportional to 527,621.13, 791,505.45 and 172,564.38 is: 258,870.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,621.13 : 791,505.45 = 172,564.38 : x
  2. Step 2: Convert to fraction form
    527,621.13/791,505.45 = 172,564.38/x
  3. Step 3: Cross multiply
    527,621.13x = 791,505.45 × 172,564.38
  4. Step 4: Simplify right side
    527,621.13x = 136,585,647,245.87
  5. Step 5: Solve for x
    x = 136,585,647,245.87/527,621.13
  6. Step 6: Final answer
    x = 258,870.69

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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.