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Finding the Fourth Proportional to 616,962.66, 851,451.85 and 345,055.85

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Solution

The fourth proportional to 616,962.66, 851,451.85 and 345,055.85 is: 476,201.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,962.66 : 851,451.85 = 345,055.85 : x
  2. Step 2: Convert to fraction form
    616,962.66/851,451.85 = 345,055.85/x
  3. Step 3: Cross multiply
    616,962.66x = 851,451.85 × 345,055.85
  4. Step 4: Simplify right side
    616,962.66x = 293,798,441,835.82
  5. Step 5: Solve for x
    x = 293,798,441,835.82/616,962.66
  6. Step 6: Final answer
    x = 476,201.33

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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.