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Finding the Fourth Proportional to 959,437, 1,324,139.70 and 557,029

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Solution

The fourth proportional to 959,437, 1,324,139.70 and 557,029 is: 768,767.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    959,437 : 1,324,139.70 = 557,029 : x
  2. Step 2: Convert to fraction form
    959,437/1,324,139.70 = 557,029/x
  3. Step 3: Cross multiply
    959,437x = 1,324,139.70 × 557,029
  4. Step 4: Simplify right side
    959,437x = 737,584,212,951.30
  5. Step 5: Solve for x
    x = 737,584,212,951.30/959,437
  6. Step 6: Final answer
    x = 768,767.74

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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.