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Finding the Fourth Proportional to 1,943,939.83, 2,917,211.28 and 806,703.14

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Solution

The fourth proportional to 1,943,939.83, 2,917,211.28 and 806,703.14 is: 1,210,594.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,943,939.83 : 2,917,211.28 = 806,703.14 : x
  2. Step 2: Convert to fraction form
    1,943,939.83/2,917,211.28 = 806,703.14/x
  3. Step 3: Cross multiply
    1,943,939.83x = 2,917,211.28 × 806,703.14
  4. Step 4: Simplify right side
    1,943,939.83x = 2,353,323,499,619.42
  5. Step 5: Solve for x
    x = 2,353,323,499,619.42/1,943,939.83
  6. Step 6: Final answer
    x = 1,210,594.83

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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.