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Finding the Fourth Proportional to 3,957,655.72, 5,936,497.62 and 965,839.72

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Solution

The fourth proportional to 3,957,655.72, 5,936,497.62 and 965,839.72 is: 1,448,763.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957,655.72 : 5,936,497.62 = 965,839.72 : x
  2. Step 2: Convert to fraction form
    3,957,655.72/5,936,497.62 = 965,839.72/x
  3. Step 3: Cross multiply
    3,957,655.72x = 5,936,497.62 × 965,839.72
  4. Step 4: Simplify right side
    3,957,655.72x = 5,733,705,199,081.47
  5. Step 5: Solve for x
    x = 5,733,705,199,081.47/3,957,655.72
  6. Step 6: Final answer
    x = 1,448,763.01

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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.