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Finding the Fourth Proportional to 462,789.44, 638,705.44 and 261,583.68

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Solution

The fourth proportional to 462,789.44, 638,705.44 and 261,583.68 is: 361,017.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,789.44 : 638,705.44 = 261,583.68 : x
  2. Step 2: Convert to fraction form
    462,789.44/638,705.44 = 261,583.68/x
  3. Step 3: Cross multiply
    462,789.44x = 638,705.44 × 261,583.68
  4. Step 4: Simplify right side
    462,789.44x = 167,074,919,431.22
  5. Step 5: Solve for x
    x = 167,074,919,431.22/462,789.44
  6. Step 6: Final answer
    x = 361,017.14

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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.