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Finding the Fourth Proportional to 303,593.20, 455,665.20 and 153,937.60

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Solution

The fourth proportional to 303,593.20, 455,665.20 and 153,937.60 is: 231,046.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,593.20 : 455,665.20 = 153,937.60 : x
  2. Step 2: Convert to fraction form
    303,593.20/455,665.20 = 153,937.60/x
  3. Step 3: Cross multiply
    303,593.20x = 455,665.20 × 153,937.60
  4. Step 4: Simplify right side
    303,593.20x = 70,144,007,291.52
  5. Step 5: Solve for x
    x = 70,144,007,291.52/303,593.20
  6. Step 6: Final answer
    x = 231,046.04

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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.