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Finding the Fourth Proportional to 547,289.84, 755,252.82 and 305,576.52

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Solution

The fourth proportional to 547,289.84, 755,252.82 and 305,576.52 is: 421,691.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,289.84 : 755,252.82 = 305,576.52 : x
  2. Step 2: Convert to fraction form
    547,289.84/755,252.82 = 305,576.52/x
  3. Step 3: Cross multiply
    547,289.84x = 755,252.82 × 305,576.52
  4. Step 4: Simplify right side
    547,289.84x = 230,787,528,455.79
  5. Step 5: Solve for x
    x = 230,787,528,455.79/547,289.84
  6. Step 6: Final answer
    x = 421,691.60

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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.