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Finding the Fourth Proportional to 617,774.34, 926,306.60 and 329,230.66

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Solution

The fourth proportional to 617,774.34, 926,306.60 and 329,230.66 is: 493,656.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,774.34 : 926,306.60 = 329,230.66 : x
  2. Step 2: Convert to fraction form
    617,774.34/926,306.60 = 329,230.66/x
  3. Step 3: Cross multiply
    617,774.34x = 926,306.60 × 329,230.66
  4. Step 4: Simplify right side
    617,774.34x = 304,968,531,634.20
  5. Step 5: Solve for x
    x = 304,968,531,634.20/617,774.34
  6. Step 6: Final answer
    x = 493,656.85

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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.