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Finding the Fourth Proportional to 722,806.76, 997,639.78 and 481,098.92

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Solution

The fourth proportional to 722,806.76, 997,639.78 and 481,098.92 is: 664,027.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,806.76 : 997,639.78 = 481,098.92 : x
  2. Step 2: Convert to fraction form
    722,806.76/997,639.78 = 481,098.92/x
  3. Step 3: Cross multiply
    722,806.76x = 997,639.78 × 481,098.92
  4. Step 4: Simplify right side
    722,806.76x = 479,963,420,707.04
  5. Step 5: Solve for x
    x = 479,963,420,707.04/722,806.76
  6. Step 6: Final answer
    x = 664,027.30

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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.