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Finding the Fourth Proportional to 547,915.02, 755,633.14 and 343,984.94

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Solution

The fourth proportional to 547,915.02, 755,633.14 and 343,984.94 is: 474,391.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,915.02 : 755,633.14 = 343,984.94 : x
  2. Step 2: Convert to fraction form
    547,915.02/755,633.14 = 343,984.94/x
  3. Step 3: Cross multiply
    547,915.02x = 755,633.14 × 343,984.94
  4. Step 4: Simplify right side
    547,915.02x = 259,926,424,705.76
  5. Step 5: Solve for x
    x = 259,926,424,705.76/547,915.02
  6. Step 6: Final answer
    x = 474,391.86

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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.