Home / 817,853.46-1,226,974.19-256,887.96

Finding the Fourth Proportional to 817,853.46, 1,226,974.19 and 256,887.96

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Solution

The fourth proportional to 817,853.46, 1,226,974.19 and 256,887.96 is: 385,392.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,853.46 : 1,226,974.19 = 256,887.96 : x
  2. Step 2: Convert to fraction form
    817,853.46/1,226,974.19 = 256,887.96/x
  3. Step 3: Cross multiply
    817,853.46x = 1,226,974.19 × 256,887.96
  4. Step 4: Simplify right side
    817,853.46x = 315,194,895,357.31
  5. Step 5: Solve for x
    x = 315,194,895,357.31/817,853.46
  6. Step 6: Final answer
    x = 385,392.87

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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.