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Finding the Fourth Proportional to 3,606,842.88, 4,977,903.76 and 2,078,960.88

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Solution

The fourth proportional to 3,606,842.88, 4,977,903.76 and 2,078,960.88 is: 2,869,231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,606,842.88 : 4,977,903.76 = 2,078,960.88 : x
  2. Step 2: Convert to fraction form
    3,606,842.88/4,977,903.76 = 2,078,960.88/x
  3. Step 3: Cross multiply
    3,606,842.88x = 4,977,903.76 × 2,078,960.88
  4. Step 4: Simplify right side
    3,606,842.88x = 10,348,867,181,444.91
  5. Step 5: Solve for x
    x = 10,348,867,181,444.91/3,606,842.88
  6. Step 6: Final answer
    x = 2,869,231.49

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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.