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Finding the Fourth Proportional to 438,576.64, 605,233.92 and 247,587.84

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Solution

The fourth proportional to 438,576.64, 605,233.92 and 247,587.84 is: 341,670.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,576.64 : 605,233.92 = 247,587.84 : x
  2. Step 2: Convert to fraction form
    438,576.64/605,233.92 = 247,587.84/x
  3. Step 3: Cross multiply
    438,576.64x = 605,233.92 × 247,587.84
  4. Step 4: Simplify right side
    438,576.64x = 149,848,558,947.53
  5. Step 5: Solve for x
    x = 149,848,558,947.53/438,576.64
  6. Step 6: Final answer
    x = 341,670.18

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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.