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Finding the Fourth Proportional to 961,696.72, 1,442,676.30 and 400,600

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Solution

The fourth proportional to 961,696.72, 1,442,676.30 and 400,600 is: 600,954.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    961,696.72 : 1,442,676.30 = 400,600 : x
  2. Step 2: Convert to fraction form
    961,696.72/1,442,676.30 = 400,600/x
  3. Step 3: Cross multiply
    961,696.72x = 1,442,676.30 × 400,600
  4. Step 4: Simplify right side
    961,696.72x = 577,936,125,780
  5. Step 5: Solve for x
    x = 577,936,125,780/961,696.72
  6. Step 6: Final answer
    x = 600,954.66

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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.