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Finding the Fourth Proportional to 416,195.20, 623,371.20 and 342,467.20

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Solution

The fourth proportional to 416,195.20, 623,371.20 and 342,467.20 is: 512,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,195.20 : 623,371.20 = 342,467.20 : x
  2. Step 2: Convert to fraction form
    416,195.20/623,371.20 = 342,467.20/x
  3. Step 3: Cross multiply
    416,195.20x = 623,371.20 × 342,467.20
  4. Step 4: Simplify right side
    416,195.20x = 213,484,189,424.64
  5. Step 5: Solve for x
    x = 213,484,189,424.64/416,195.20
  6. Step 6: Final answer
    x = 512,942.46

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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.