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Finding the Fourth Proportional to 1,609,753.14, 2,220,974.90 and 964,938.06

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Solution

The fourth proportional to 1,609,753.14, 2,220,974.90 and 964,938.06 is: 1,331,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,609,753.14 : 2,220,974.90 = 964,938.06 : x
  2. Step 2: Convert to fraction form
    1,609,753.14/2,220,974.90 = 964,938.06/x
  3. Step 3: Cross multiply
    1,609,753.14x = 2,220,974.90 × 964,938.06
  4. Step 4: Simplify right side
    1,609,753.14x = 2,143,103,195,385.13
  5. Step 5: Solve for x
    x = 2,143,103,195,385.13/1,609,753.14
  6. Step 6: Final answer
    x = 1,331,324.13

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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.