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Finding the Fourth Proportional to 447,342.70, 617,231.58 and 326,549.83

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Solution

The fourth proportional to 447,342.70, 617,231.58 and 326,549.83 is: 450,564.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,342.70 : 617,231.58 = 326,549.83 : x
  2. Step 2: Convert to fraction form
    447,342.70/617,231.58 = 326,549.83/x
  3. Step 3: Cross multiply
    447,342.70x = 617,231.58 × 326,549.83
  4. Step 4: Simplify right side
    447,342.70x = 201,556,867,519.63
  5. Step 5: Solve for x
    x = 201,556,867,519.63/447,342.70
  6. Step 6: Final answer
    x = 450,564.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.