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Finding the Fourth Proportional to 467,208.56, 700,900.20 and 217,890.56

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Solution

The fourth proportional to 467,208.56, 700,900.20 and 217,890.56 is: 326,876.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,208.56 : 700,900.20 = 217,890.56 : x
  2. Step 2: Convert to fraction form
    467,208.56/700,900.20 = 217,890.56/x
  3. Step 3: Cross multiply
    467,208.56x = 700,900.20 × 217,890.56
  4. Step 4: Simplify right side
    467,208.56x = 152,719,537,082.11
  5. Step 5: Solve for x
    x = 152,719,537,082.11/467,208.56
  6. Step 6: Final answer
    x = 326,876.58

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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.