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Finding the Fourth Proportional to 411,392.80, 617,089.20 and 224,768.80

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Solution

The fourth proportional to 411,392.80, 617,089.20 and 224,768.80 is: 337,153.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,392.80 : 617,089.20 = 224,768.80 : x
  2. Step 2: Convert to fraction form
    411,392.80/617,089.20 = 224,768.80/x
  3. Step 3: Cross multiply
    411,392.80x = 617,089.20 × 224,768.80
  4. Step 4: Simplify right side
    411,392.80x = 138,702,398,976.96
  5. Step 5: Solve for x
    x = 138,702,398,976.96/411,392.80
  6. Step 6: Final answer
    x = 337,153.20

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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.