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Finding the Fourth Proportional to 304,466.40, 420,061.20 and 177,037.20

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Solution

The fourth proportional to 304,466.40, 420,061.20 and 177,037.20 is: 244,251.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,466.40 : 420,061.20 = 177,037.20 : x
  2. Step 2: Convert to fraction form
    304,466.40/420,061.20 = 177,037.20/x
  3. Step 3: Cross multiply
    304,466.40x = 420,061.20 × 177,037.20
  4. Step 4: Simplify right side
    304,466.40x = 74,366,458,676.64
  5. Step 5: Solve for x
    x = 74,366,458,676.64/304,466.40
  6. Step 6: Final answer
    x = 244,251.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.