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Finding the Fourth Proportional to 480,581.44, 720,401.36 and 267,451

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Solution

The fourth proportional to 480,581.44, 720,401.36 and 267,451 is: 400,914.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,581.44 : 720,401.36 = 267,451 : x
  2. Step 2: Convert to fraction form
    480,581.44/720,401.36 = 267,451/x
  3. Step 3: Cross multiply
    480,581.44x = 720,401.36 × 267,451
  4. Step 4: Simplify right side
    480,581.44x = 192,672,064,133.36
  5. Step 5: Solve for x
    x = 192,672,064,133.36/480,581.44
  6. Step 6: Final answer
    x = 400,914.49

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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.