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Finding the Fourth Proportional to 1,943,938.83, 2,917,209.78 and 806,702.14

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Solution

The fourth proportional to 1,943,938.83, 2,917,209.78 and 806,702.14 is: 1,210,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,938.83 : 2,917,209.78 = 806,702.14 : x
  2. Step 2: Convert to fraction form
    1,943,938.83/2,917,209.78 = 806,702.14/x
  3. Step 3: Cross multiply
    1,943,938.83x = 2,917,209.78 × 806,702.14
  4. Step 4: Simplify right side
    1,943,938.83x = 2,353,319,372,354.93
  5. Step 5: Solve for x
    x = 2,353,319,372,354.93/1,943,938.83
  6. Step 6: Final answer
    x = 1,210,593.33

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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.