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Finding the Fourth Proportional to 617,271.86, 925,910.13 and 217,695.62

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Solution

The fourth proportional to 617,271.86, 925,910.13 and 217,695.62 is: 326,544.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,271.86 : 925,910.13 = 217,695.62 : x
  2. Step 2: Convert to fraction form
    617,271.86/925,910.13 = 217,695.62/x
  3. Step 3: Cross multiply
    617,271.86x = 925,910.13 × 217,695.62
  4. Step 4: Simplify right side
    617,271.86x = 201,566,579,814.63
  5. Step 5: Solve for x
    x = 201,566,579,814.63/617,271.86
  6. Step 6: Final answer
    x = 326,544.26

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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.