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Finding the Fourth Proportional to 641,082.70, 888,739.80 and 606,954.57

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Solution

The fourth proportional to 641,082.70, 888,739.80 and 606,954.57 is: 841,427.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,082.70 : 888,739.80 = 606,954.57 : x
  2. Step 2: Convert to fraction form
    641,082.70/888,739.80 = 606,954.57/x
  3. Step 3: Cross multiply
    641,082.70x = 888,739.80 × 606,954.57
  4. Step 4: Simplify right side
    641,082.70x = 539,424,677,542.03
  5. Step 5: Solve for x
    x = 539,424,677,542.03/641,082.70
  6. Step 6: Final answer
    x = 841,427.60

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.