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Finding the Fourth Proportional to 418,936.32, 627,552 and 334,837.44

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Solution

The fourth proportional to 418,936.32, 627,552 and 334,837.44 is: 501,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,936.32 : 627,552 = 334,837.44 : x
  2. Step 2: Convert to fraction form
    418,936.32/627,552 = 334,837.44/x
  3. Step 3: Cross multiply
    418,936.32x = 627,552 × 334,837.44
  4. Step 4: Simplify right side
    418,936.32x = 210,127,905,146.88
  5. Step 5: Solve for x
    x = 210,127,905,146.88/418,936.32
  6. Step 6: Final answer
    x = 501,574.81

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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.