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Finding the Fourth Proportional to 483,138.70, 724,708.05 and 441,804.40

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Solution

The fourth proportional to 483,138.70, 724,708.05 and 441,804.40 is: 662,706.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,138.70 : 724,708.05 = 441,804.40 : x
  2. Step 2: Convert to fraction form
    483,138.70/724,708.05 = 441,804.40/x
  3. Step 3: Cross multiply
    483,138.70x = 724,708.05 × 441,804.40
  4. Step 4: Simplify right side
    483,138.70x = 320,179,205,205.42
  5. Step 5: Solve for x
    x = 320,179,205,205.42/483,138.70
  6. Step 6: Final answer
    x = 662,706.60

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Similar ratio
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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.