Home / 823,138.56-1,234,755.84-317,702.16

Finding the Fourth Proportional to 823,138.56, 1,234,755.84 and 317,702.16

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Solution

The fourth proportional to 823,138.56, 1,234,755.84 and 317,702.16 is: 476,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,138.56 : 1,234,755.84 = 317,702.16 : x
  2. Step 2: Convert to fraction form
    823,138.56/1,234,755.84 = 317,702.16/x
  3. Step 3: Cross multiply
    823,138.56x = 1,234,755.84 × 317,702.16
  4. Step 4: Simplify right side
    823,138.56x = 392,284,597,440.61
  5. Step 5: Solve for x
    x = 392,284,597,440.61/823,138.56
  6. Step 6: Final answer
    x = 476,571.77

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Double scale
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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.