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Finding the Fourth Proportional to 575,576.16, 862,871.86 and 220,844.76

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Solution

The fourth proportional to 575,576.16, 862,871.86 and 220,844.76 is: 331,078.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,576.16 : 862,871.86 = 220,844.76 : x
  2. Step 2: Convert to fraction form
    575,576.16/862,871.86 = 220,844.76/x
  3. Step 3: Cross multiply
    575,576.16x = 862,871.86 × 220,844.76
  4. Step 4: Simplify right side
    575,576.16x = 190,560,728,832.45
  5. Step 5: Solve for x
    x = 190,560,728,832.45/575,576.16
  6. Step 6: Final answer
    x = 331,078.22

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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.