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Finding the Fourth Proportional to 866,413.72, 1,195,170.74 and 503,797.64

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Solution

The fourth proportional to 866,413.72, 1,195,170.74 and 503,797.64 is: 694,961.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,413.72 : 1,195,170.74 = 503,797.64 : x
  2. Step 2: Convert to fraction form
    866,413.72/1,195,170.74 = 503,797.64/x
  3. Step 3: Cross multiply
    866,413.72x = 1,195,170.74 × 503,797.64
  4. Step 4: Simplify right side
    866,413.72x = 602,124,198,209.05
  5. Step 5: Solve for x
    x = 602,124,198,209.05/866,413.72
  6. Step 6: Final answer
    x = 694,961.52

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Double scale
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1.5x scale

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.