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Finding the Fourth Proportional to 2,627,561.86, 3,941,932.48 and 830,549.86

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Solution

The fourth proportional to 2,627,561.86, 3,941,932.48 and 830,549.86 is: 1,246,011.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,627,561.86 : 3,941,932.48 = 830,549.86 : x
  2. Step 2: Convert to fraction form
    2,627,561.86/3,941,932.48 = 830,549.86/x
  3. Step 3: Cross multiply
    2,627,561.86x = 3,941,932.48 × 830,549.86
  4. Step 4: Simplify right side
    2,627,561.86x = 3,273,971,469,393.45
  5. Step 5: Solve for x
    x = 3,273,971,469,393.45/2,627,561.86
  6. Step 6: Final answer
    x = 1,246,011.19

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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.