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Finding the Fourth Proportional to 303,814.20, 455,065.20 and 264,448.20

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Solution

The fourth proportional to 303,814.20, 455,065.20 and 264,448.20 is: 396,101.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,814.20 : 455,065.20 = 264,448.20 : x
  2. Step 2: Convert to fraction form
    303,814.20/455,065.20 = 264,448.20/x
  3. Step 3: Cross multiply
    303,814.20x = 455,065.20 × 264,448.20
  4. Step 4: Simplify right side
    303,814.20x = 120,341,173,022.64
  5. Step 5: Solve for x
    x = 120,341,173,022.64/303,814.20
  6. Step 6: Final answer
    x = 396,101.21

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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.