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Finding the Fourth Proportional to 254,605.40, 381,908.10 and 195,738.20

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Solution

The fourth proportional to 254,605.40, 381,908.10 and 195,738.20 is: 293,607.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,605.40 : 381,908.10 = 195,738.20 : x
  2. Step 2: Convert to fraction form
    254,605.40/381,908.10 = 195,738.20/x
  3. Step 3: Cross multiply
    254,605.40x = 381,908.10 × 195,738.20
  4. Step 4: Simplify right side
    254,605.40x = 74,754,004,059.42
  5. Step 5: Solve for x
    x = 74,754,004,059.42/254,605.40
  6. Step 6: Final answer
    x = 293,607.30

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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.