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Finding the Fourth Proportional to 859,706.70, 1,289,560.05 and 741,608.70

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Solution

The fourth proportional to 859,706.70, 1,289,560.05 and 741,608.70 is: 1,112,413.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,706.70 : 1,289,560.05 = 741,608.70 : x
  2. Step 2: Convert to fraction form
    859,706.70/1,289,560.05 = 741,608.70/x
  3. Step 3: Cross multiply
    859,706.70x = 1,289,560.05 × 741,608.70
  4. Step 4: Simplify right side
    859,706.70x = 956,348,952,252.44
  5. Step 5: Solve for x
    x = 956,348,952,252.44/859,706.70
  6. Step 6: Final answer
    x = 1,112,413.05

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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.