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Finding the Fourth Proportional to 2,592,786.80, 3,892,679.40 and 2,060,908.40

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Solution

The fourth proportional to 2,592,786.80, 3,892,679.40 and 2,060,908.40 is: 3,094,143.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,592,786.80 : 3,892,679.40 = 2,060,908.40 : x
  2. Step 2: Convert to fraction form
    2,592,786.80/3,892,679.40 = 2,060,908.40/x
  3. Step 3: Cross multiply
    2,592,786.80x = 3,892,679.40 × 2,060,908.40
  4. Step 4: Simplify right side
    2,592,786.80x = 8,022,455,673,966.96
  5. Step 5: Solve for x
    x = 8,022,455,673,966.96/2,592,786.80
  6. Step 6: Final answer
    x = 3,094,143.98

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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.