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Finding the Fourth Proportional to 550,251.30, 770,876.70 and 550,251.30

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Solution

The fourth proportional to 550,251.30, 770,876.70 and 550,251.30 is: 770,876.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,251.30 : 770,876.70 = 550,251.30 : x
  2. Step 2: Convert to fraction form
    550,251.30/770,876.70 = 550,251.30/x
  3. Step 3: Cross multiply
    550,251.30x = 770,876.70 × 550,251.30
  4. Step 4: Simplify right side
    550,251.30x = 424,175,906,314.71
  5. Step 5: Solve for x
    x = 424,175,906,314.71/550,251.30
  6. Step 6: Final answer
    x = 770,876.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.