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Finding the Fourth Proportional to 617,887.93, 926,476.68 and 329,344.15

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Solution

The fourth proportional to 617,887.93, 926,476.68 and 329,344.15 is: 493,826.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,887.93 : 926,476.68 = 329,344.15 : x
  2. Step 2: Convert to fraction form
    617,887.93/926,476.68 = 329,344.15/x
  3. Step 3: Cross multiply
    617,887.93x = 926,476.68 × 329,344.15
  4. Step 4: Simplify right side
    617,887.93x = 305,129,674,669.42
  5. Step 5: Solve for x
    x = 305,129,674,669.42/617,887.93
  6. Step 6: Final answer
    x = 493,826.89

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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.