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Finding the Fourth Proportional to 483,211.40, 724,817.10 and 452,107.40

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Solution

The fourth proportional to 483,211.40, 724,817.10 and 452,107.40 is: 678,161.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,211.40 : 724,817.10 = 452,107.40 : x
  2. Step 2: Convert to fraction form
    483,211.40/724,817.10 = 452,107.40/x
  3. Step 3: Cross multiply
    483,211.40x = 724,817.10 × 452,107.40
  4. Step 4: Simplify right side
    483,211.40x = 327,695,174,556.54
  5. Step 5: Solve for x
    x = 327,695,174,556.54/483,211.40
  6. Step 6: Final answer
    x = 678,161.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.