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Finding the Fourth Proportional to 617,885.93, 926,473.68 and 329,342.15

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Solution

The fourth proportional to 617,885.93, 926,473.68 and 329,342.15 is: 493,823.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,885.93 : 926,473.68 = 329,342.15 : x
  2. Step 2: Convert to fraction form
    617,885.93/926,473.68 = 329,342.15/x
  3. Step 3: Cross multiply
    617,885.93x = 926,473.68 × 329,342.15
  4. Step 4: Simplify right side
    617,885.93x = 305,126,837,395.21
  5. Step 5: Solve for x
    x = 305,126,837,395.21/617,885.93
  6. Step 6: Final answer
    x = 493,823.89

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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.