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Finding the Fourth Proportional to 547,551.69, 820,181.92 and 440,356.23

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Solution

The fourth proportional to 547,551.69, 820,181.92 and 440,356.23 is: 659,613.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,551.69 : 820,181.92 = 440,356.23 : x
  2. Step 2: Convert to fraction form
    547,551.69/820,181.92 = 440,356.23/x
  3. Step 3: Cross multiply
    547,551.69x = 820,181.92 × 440,356.23
  4. Step 4: Simplify right side
    547,551.69x = 361,172,217,930.14
  5. Step 5: Solve for x
    x = 361,172,217,930.14/547,551.69
  6. Step 6: Final answer
    x = 659,613.01

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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.