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Finding the Fourth Proportional to 455,008.32, 627,883.11 and 251,060.85

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Solution

The fourth proportional to 455,008.32, 627,883.11 and 251,060.85 is: 346,448.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,008.32 : 627,883.11 = 251,060.85 : x
  2. Step 2: Convert to fraction form
    455,008.32/627,883.11 = 251,060.85/x
  3. Step 3: Cross multiply
    455,008.32x = 627,883.11 × 251,060.85
  4. Step 4: Simplify right side
    455,008.32x = 157,636,867,297.24
  5. Step 5: Solve for x
    x = 157,636,867,297.24/455,008.32
  6. Step 6: Final answer
    x = 346,448.32

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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.