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Finding the Fourth Proportional to 303,637.20, 455,650.20 and 177,277.20

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Solution

The fourth proportional to 303,637.20, 455,650.20 and 177,277.20 is: 266,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,637.20 : 455,650.20 = 177,277.20 : x
  2. Step 2: Convert to fraction form
    303,637.20/455,650.20 = 177,277.20/x
  3. Step 3: Cross multiply
    303,637.20x = 455,650.20 × 177,277.20
  4. Step 4: Simplify right side
    303,637.20x = 80,776,391,635.44
  5. Step 5: Solve for x
    x = 80,776,391,635.44/303,637.20
  6. Step 6: Final answer
    x = 266,029.30

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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.