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Finding the Fourth Proportional to 523,550.39, 722,530.40 and 394,260.76

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Solution

The fourth proportional to 523,550.39, 722,530.40 and 394,260.76 is: 544,103.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,550.39 : 722,530.40 = 394,260.76 : x
  2. Step 2: Convert to fraction form
    523,550.39/722,530.40 = 394,260.76/x
  3. Step 3: Cross multiply
    523,550.39x = 722,530.40 × 394,260.76
  4. Step 4: Simplify right side
    523,550.39x = 284,865,385,612.76
  5. Step 5: Solve for x
    x = 284,865,385,612.76/523,550.39
  6. Step 6: Final answer
    x = 544,103.09

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Double scale
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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.