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Finding the Fourth Proportional to 466,618.20, 699,351.30 and 316,858.20

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Solution

The fourth proportional to 466,618.20, 699,351.30 and 316,858.20 is: 474,896.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,618.20 : 699,351.30 = 316,858.20 : x
  2. Step 2: Convert to fraction form
    466,618.20/699,351.30 = 316,858.20/x
  3. Step 3: Cross multiply
    466,618.20x = 699,351.30 × 316,858.20
  4. Step 4: Simplify right side
    466,618.20x = 221,595,194,085.66
  5. Step 5: Solve for x
    x = 221,595,194,085.66/466,618.20
  6. Step 6: Final answer
    x = 474,896.17

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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.