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Finding the Fourth Proportional to 682,440.70, 941,771.44 and 376,517.06

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Solution

The fourth proportional to 682,440.70, 941,771.44 and 376,517.06 is: 519,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,440.70 : 941,771.44 = 376,517.06 : x
  2. Step 2: Convert to fraction form
    682,440.70/941,771.44 = 376,517.06/x
  3. Step 3: Cross multiply
    682,440.70x = 941,771.44 × 376,517.06
  4. Step 4: Simplify right side
    682,440.70x = 354,593,013,780.77
  5. Step 5: Solve for x
    x = 354,593,013,780.77/682,440.70
  6. Step 6: Final answer
    x = 519,595.35

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.