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Finding the Fourth Proportional to 417,834.72, 576,647.60 and 236,578.60

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Solution

The fourth proportional to 417,834.72, 576,647.60 and 236,578.60 is: 326,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,834.72 : 576,647.60 = 236,578.60 : x
  2. Step 2: Convert to fraction form
    417,834.72/576,647.60 = 236,578.60/x
  3. Step 3: Cross multiply
    417,834.72x = 576,647.60 × 236,578.60
  4. Step 4: Simplify right side
    417,834.72x = 136,422,481,901.36
  5. Step 5: Solve for x
    x = 136,422,481,901.36/417,834.72
  6. Step 6: Final answer
    x = 326,498.67

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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.