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Finding the Fourth Proportional to 404,436.80, 606,655.20 and 341,451.20

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Solution

The fourth proportional to 404,436.80, 606,655.20 and 341,451.20 is: 512,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,436.80 : 606,655.20 = 341,451.20 : x
  2. Step 2: Convert to fraction form
    404,436.80/606,655.20 = 341,451.20/x
  3. Step 3: Cross multiply
    404,436.80x = 606,655.20 × 341,451.20
  4. Step 4: Simplify right side
    404,436.80x = 207,143,146,026.24
  5. Step 5: Solve for x
    x = 207,143,146,026.24/404,436.80
  6. Step 6: Final answer
    x = 512,176.80

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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.