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Finding the Fourth Proportional to 466,605.20, 699,331.80 and 316,845.20

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Solution

The fourth proportional to 466,605.20, 699,331.80 and 316,845.20 is: 474,876.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,605.20 : 699,331.80 = 316,845.20 : x
  2. Step 2: Convert to fraction form
    466,605.20/699,331.80 = 316,845.20/x
  3. Step 3: Cross multiply
    466,605.20x = 699,331.80 × 316,845.20
  4. Step 4: Simplify right side
    466,605.20x = 221,579,924,037.36
  5. Step 5: Solve for x
    x = 221,579,924,037.36/466,605.20
  6. Step 6: Final answer
    x = 474,876.67

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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.