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Finding the Fourth Proportional to 469,915.44, 648,484.20 and 268,711.44

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Solution

The fourth proportional to 469,915.44, 648,484.20 and 268,711.44 is: 370,822.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,915.44 : 648,484.20 = 268,711.44 : x
  2. Step 2: Convert to fraction form
    469,915.44/648,484.20 = 268,711.44/x
  3. Step 3: Cross multiply
    469,915.44x = 648,484.20 × 268,711.44
  4. Step 4: Simplify right side
    469,915.44x = 174,255,123,199.25
  5. Step 5: Solve for x
    x = 174,255,123,199.25/469,915.44
  6. Step 6: Final answer
    x = 370,822.30

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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.