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Finding the Fourth Proportional to 606,959.10, 910,803.15 and 251,936.10

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Solution

The fourth proportional to 606,959.10, 910,803.15 and 251,936.10 is: 378,055.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,959.10 : 910,803.15 = 251,936.10 : x
  2. Step 2: Convert to fraction form
    606,959.10/910,803.15 = 251,936.10/x
  3. Step 3: Cross multiply
    606,959.10x = 910,803.15 × 251,936.10
  4. Step 4: Simplify right side
    606,959.10x = 229,464,193,478.72
  5. Step 5: Solve for x
    x = 229,464,193,478.72/606,959.10
  6. Step 6: Final answer
    x = 378,055.45

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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.