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Finding the Fourth Proportional to 441,289.42, 661,934.12 and 308,429.17

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Solution

The fourth proportional to 441,289.42, 661,934.12 and 308,429.17 is: 462,643.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,289.42 : 661,934.12 = 308,429.17 : x
  2. Step 2: Convert to fraction form
    441,289.42/661,934.12 = 308,429.17/x
  3. Step 3: Cross multiply
    441,289.42x = 661,934.12 × 308,429.17
  4. Step 4: Simplify right side
    441,289.42x = 204,159,788,029.30
  5. Step 5: Solve for x
    x = 204,159,788,029.30/441,289.42
  6. Step 6: Final answer
    x = 462,643.74

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Similar ratio
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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.