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Finding the Fourth Proportional to 303,800.20, 455,044.20 and 264,434.20

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Solution

The fourth proportional to 303,800.20, 455,044.20 and 264,434.20 is: 396,080.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,800.20 : 455,044.20 = 264,434.20 : x
  2. Step 2: Convert to fraction form
    303,800.20/455,044.20 = 264,434.20/x
  3. Step 3: Cross multiply
    303,800.20x = 455,044.20 × 264,434.20
  4. Step 4: Simplify right side
    303,800.20x = 120,329,248,991.64
  5. Step 5: Solve for x
    x = 120,329,248,991.64/303,800.20
  6. Step 6: Final answer
    x = 396,080.22

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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.