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Finding the Fourth Proportional to 571,462.12, 857,199.66 and 216,379.72

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Solution

The fourth proportional to 571,462.12, 857,199.66 and 216,379.72 is: 324,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,462.12 : 857,199.66 = 216,379.72 : x
  2. Step 2: Convert to fraction form
    571,462.12/857,199.66 = 216,379.72/x
  3. Step 3: Cross multiply
    571,462.12x = 857,199.66 × 216,379.72
  4. Step 4: Simplify right side
    571,462.12x = 185,480,622,414.90
  5. Step 5: Solve for x
    x = 185,480,622,414.90/571,462.12
  6. Step 6: Final answer
    x = 324,572.03

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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.