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Finding the Fourth Proportional to 1,476,576, 2,215,233.92 and 425,952

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Solution

The fourth proportional to 1,476,576, 2,215,233.92 and 425,952 is: 639,034.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,476,576 : 2,215,233.92 = 425,952 : x
  2. Step 2: Convert to fraction form
    1,476,576/2,215,233.92 = 425,952/x
  3. Step 3: Cross multiply
    1,476,576x = 2,215,233.92 × 425,952
  4. Step 4: Simplify right side
    1,476,576x = 943,583,318,691.84
  5. Step 5: Solve for x
    x = 943,583,318,691.84/1,476,576
  6. Step 6: Final answer
    x = 639,034.71

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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.