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Finding the Fourth Proportional to 416,249.20, 623,452.20 and 342,521.20

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Solution

The fourth proportional to 416,249.20, 623,452.20 and 342,521.20 is: 513,023.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,249.20 : 623,452.20 = 342,521.20 : x
  2. Step 2: Convert to fraction form
    416,249.20/623,452.20 = 342,521.20/x
  3. Step 3: Cross multiply
    416,249.20x = 623,452.20 × 342,521.20
  4. Step 4: Simplify right side
    416,249.20x = 213,545,595,686.64
  5. Step 5: Solve for x
    x = 213,545,595,686.64/416,249.20
  6. Step 6: Final answer
    x = 513,023.44

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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.