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Finding the Fourth Proportional to 559,343.32, 771,868.86 and 326,791.84

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Solution

The fourth proportional to 559,343.32, 771,868.86 and 326,791.84 is: 450,958.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,343.32 : 771,868.86 = 326,791.84 : x
  2. Step 2: Convert to fraction form
    559,343.32/771,868.86 = 326,791.84/x
  3. Step 3: Cross multiply
    559,343.32x = 771,868.86 × 326,791.84
  4. Step 4: Simplify right side
    559,343.32x = 252,240,444,998.10
  5. Step 5: Solve for x
    x = 252,240,444,998.10/559,343.32
  6. Step 6: Final answer
    x = 450,958.18

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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.