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Finding the Fourth Proportional to 373,974.39, 560,764.74 and 255,679.56

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Solution

The fourth proportional to 373,974.39, 560,764.74 and 255,679.56 is: 383,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,974.39 : 560,764.74 = 255,679.56 : x
  2. Step 2: Convert to fraction form
    373,974.39/560,764.74 = 255,679.56/x
  3. Step 3: Cross multiply
    373,974.39x = 560,764.74 × 255,679.56
  4. Step 4: Simplify right side
    373,974.39x = 143,376,081,986.71
  5. Step 5: Solve for x
    x = 143,376,081,986.71/373,974.39
  6. Step 6: Final answer
    x = 383,384.76

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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.