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Finding the Fourth Proportional to 375,784.56, 518,603.94 and 222,913.26

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Solution

The fourth proportional to 375,784.56, 518,603.94 and 222,913.26 is: 307,632.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,784.56 : 518,603.94 = 222,913.26 : x
  2. Step 2: Convert to fraction form
    375,784.56/518,603.94 = 222,913.26/x
  3. Step 3: Cross multiply
    375,784.56x = 518,603.94 × 222,913.26
  4. Step 4: Simplify right side
    375,784.56x = 115,603,694,914.24
  5. Step 5: Solve for x
    x = 115,603,694,914.24/375,784.56
  6. Step 6: Final answer
    x = 307,632.90

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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.