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Finding the Fourth Proportional to 483,212.10, 724,818.15 and 262,028.10

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Solution

The fourth proportional to 483,212.10, 724,818.15 and 262,028.10 is: 393,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,212.10 : 724,818.15 = 262,028.10 : x
  2. Step 2: Convert to fraction form
    483,212.10/724,818.15 = 262,028.10/x
  3. Step 3: Cross multiply
    483,212.10x = 724,818.15 × 262,028.10
  4. Step 4: Simplify right side
    483,212.10x = 189,922,722,690.02
  5. Step 5: Solve for x
    x = 189,922,722,690.02/483,212.10
  6. Step 6: Final answer
    x = 393,042.15

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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.