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Finding the Fourth Proportional to 253,017.72, 379,588.84 and 178,283.76

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Solution

The fourth proportional to 253,017.72, 379,588.84 and 178,283.76 is: 267,469.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,017.72 : 379,588.84 = 178,283.76 : x
  2. Step 2: Convert to fraction form
    253,017.72/379,588.84 = 178,283.76/x
  3. Step 3: Cross multiply
    253,017.72x = 379,588.84 × 178,283.76
  4. Step 4: Simplify right side
    253,017.72x = 67,674,525,649.24
  5. Step 5: Solve for x
    x = 67,674,525,649.24/253,017.72
  6. Step 6: Final answer
    x = 267,469.51

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1.5x scale

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.