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Finding the Fourth Proportional to 617,266.71, 851,821.79 and 341,625.11

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Solution

The fourth proportional to 617,266.71, 851,821.79 and 341,625.11 is: 471,439.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,266.71 : 851,821.79 = 341,625.11 : x
  2. Step 2: Convert to fraction form
    617,266.71/851,821.79 = 341,625.11/x
  3. Step 3: Cross multiply
    617,266.71x = 851,821.79 × 341,625.11
  4. Step 4: Simplify right side
    617,266.71x = 291,003,706,741.91
  5. Step 5: Solve for x
    x = 291,003,706,741.91/617,266.71
  6. Step 6: Final answer
    x = 471,439.17

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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.