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Finding the Fourth Proportional to 682,006.76, 941,220.66 and 395,524.28

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Solution

The fourth proportional to 682,006.76, 941,220.66 and 395,524.28 is: 545,853.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,006.76 : 941,220.66 = 395,524.28 : x
  2. Step 2: Convert to fraction form
    682,006.76/941,220.66 = 395,524.28/x
  3. Step 3: Cross multiply
    682,006.76x = 941,220.66 × 395,524.28
  4. Step 4: Simplify right side
    682,006.76x = 372,275,623,867.63
  5. Step 5: Solve for x
    x = 372,275,623,867.63/682,006.76
  6. Step 6: Final answer
    x = 545,853.28

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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.