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Finding the Fourth Proportional to 617,166.19, 851,649.33 and 345,187.02

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Solution

The fourth proportional to 617,166.19, 851,649.33 and 345,187.02 is: 476,335.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,166.19 : 851,649.33 = 345,187.02 : x
  2. Step 2: Convert to fraction form
    617,166.19/851,649.33 = 345,187.02/x
  3. Step 3: Cross multiply
    617,166.19x = 851,649.33 × 345,187.02
  4. Step 4: Simplify right side
    617,166.19x = 293,978,294,307.70
  5. Step 5: Solve for x
    x = 293,978,294,307.70/617,166.19
  6. Step 6: Final answer
    x = 476,335.71

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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.