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Finding the Fourth Proportional to 466,640.30, 699,442.05 and 256,429.10

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Solution

The fourth proportional to 466,640.30, 699,442.05 and 256,429.10 is: 384,358.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    466,640.30 : 699,442.05 = 256,429.10 : x
  2. Step 2: Convert to fraction form
    466,640.30/699,442.05 = 256,429.10/x
  3. Step 3: Cross multiply
    466,640.30x = 699,442.05 × 256,429.10
  4. Step 4: Simplify right side
    466,640.30x = 179,357,295,383.66
  5. Step 5: Solve for x
    x = 179,357,295,383.66/466,640.30
  6. Step 6: Final answer
    x = 384,358.78

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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.