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Finding the Fourth Proportional to 659,052.20, 988,578.30 and 540,954.20

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Solution

The fourth proportional to 659,052.20, 988,578.30 and 540,954.20 is: 811,431.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,052.20 : 988,578.30 = 540,954.20 : x
  2. Step 2: Convert to fraction form
    659,052.20/988,578.30 = 540,954.20/x
  3. Step 3: Cross multiply
    659,052.20x = 988,578.30 × 540,954.20
  4. Step 4: Simplify right side
    659,052.20x = 534,775,583,413.86
  5. Step 5: Solve for x
    x = 534,775,583,413.86/659,052.20
  6. Step 6: Final answer
    x = 811,431.30

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Double scale
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Similar ratio
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1.5x scale

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.