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Finding the Fourth Proportional to 469,215.42, 703,921.56 and 203,013.78

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Solution

The fourth proportional to 469,215.42, 703,921.56 and 203,013.78 is: 304,563.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,215.42 : 703,921.56 = 203,013.78 : x
  2. Step 2: Convert to fraction form
    469,215.42/703,921.56 = 203,013.78/x
  3. Step 3: Cross multiply
    469,215.42x = 703,921.56 × 203,013.78
  4. Step 4: Simplify right side
    469,215.42x = 142,905,776,719.10
  5. Step 5: Solve for x
    x = 142,905,776,719.10/469,215.42
  6. Step 6: Final answer
    x = 304,563.26

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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.