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Finding the Fourth Proportional to 961,748.72, 1,442,754.36 and 400,652

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Solution

The fourth proportional to 961,748.72, 1,442,754.36 and 400,652 is: 601,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,748.72 : 1,442,754.36 = 400,652 : x
  2. Step 2: Convert to fraction form
    961,748.72/1,442,754.36 = 400,652/x
  3. Step 3: Cross multiply
    961,748.72x = 1,442,754.36 × 400,652
  4. Step 4: Simplify right side
    961,748.72x = 578,042,419,842.72
  5. Step 5: Solve for x
    x = 578,042,419,842.72/961,748.72
  6. Step 6: Final answer
    x = 601,032.69

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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.