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Finding the Fourth Proportional to 667,995.84, 1,001,779.92 and 218,594.88

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Solution

The fourth proportional to 667,995.84, 1,001,779.92 and 218,594.88 is: 327,822.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,995.84 : 1,001,779.92 = 218,594.88 : x
  2. Step 2: Convert to fraction form
    667,995.84/1,001,779.92 = 218,594.88/x
  3. Step 3: Cross multiply
    667,995.84x = 1,001,779.92 × 218,594.88
  4. Step 4: Simplify right side
    667,995.84x = 218,983,961,398.81
  5. Step 5: Solve for x
    x = 218,983,961,398.81/667,995.84
  6. Step 6: Final answer
    x = 327,822.34

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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.