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Finding the Fourth Proportional to 616,751.72, 851,259.62 and 401,517

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Solution

The fourth proportional to 616,751.72, 851,259.62 and 401,517 is: 554,186.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,751.72 : 851,259.62 = 401,517 : x
  2. Step 2: Convert to fraction form
    616,751.72/851,259.62 = 401,517/x
  3. Step 3: Cross multiply
    616,751.72x = 851,259.62 × 401,517
  4. Step 4: Simplify right side
    616,751.72x = 341,795,208,843.54
  5. Step 5: Solve for x
    x = 341,795,208,843.54/616,751.72
  6. Step 6: Final answer
    x = 554,186.07

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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.