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Finding the Fourth Proportional to 403,968.06, 606,127.14 and 216,760.86

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Solution

The fourth proportional to 403,968.06, 606,127.14 and 216,760.86 is: 325,235.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,968.06 : 606,127.14 = 216,760.86 : x
  2. Step 2: Convert to fraction form
    403,968.06/606,127.14 = 216,760.86/x
  3. Step 3: Cross multiply
    403,968.06x = 606,127.14 × 216,760.86
  4. Step 4: Simplify right side
    403,968.06x = 131,384,640,135.74
  5. Step 5: Solve for x
    x = 131,384,640,135.74/403,968.06
  6. Step 6: Final answer
    x = 325,235.22

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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.