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Finding the Fourth Proportional to 3,191,397.78, 4,787,085.66 and 795,244.08

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Solution

The fourth proportional to 3,191,397.78, 4,787,085.66 and 795,244.08 is: 1,192,863.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,191,397.78 : 4,787,085.66 = 795,244.08 : x
  2. Step 2: Convert to fraction form
    3,191,397.78/4,787,085.66 = 795,244.08/x
  3. Step 3: Cross multiply
    3,191,397.78x = 4,787,085.66 × 795,244.08
  4. Step 4: Simplify right side
    3,191,397.78x = 3,806,901,531,567.89
  5. Step 5: Solve for x
    x = 3,806,901,531,567.89/3,191,397.78
  6. Step 6: Final answer
    x = 1,192,863.38

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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.