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Finding the Fourth Proportional to 2,886,411.78, 3,983,188.65 and 1,597,251.30

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Solution

The fourth proportional to 2,886,411.78, 3,983,188.65 and 1,597,251.30 is: 2,204,173.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,886,411.78 : 3,983,188.65 = 1,597,251.30 : x
  2. Step 2: Convert to fraction form
    2,886,411.78/3,983,188.65 = 1,597,251.30/x
  3. Step 3: Cross multiply
    2,886,411.78x = 3,983,188.65 × 1,597,251.30
  4. Step 4: Simplify right side
    2,886,411.78x = 6,362,153,249,357.75
  5. Step 5: Solve for x
    x = 6,362,153,249,357.75/2,886,411.78
  6. Step 6: Final answer
    x = 2,204,173.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.