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Finding the Fourth Proportional to 372,224.25, 557,628.44 and 212,411.25

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Solution

The fourth proportional to 372,224.25, 557,628.44 and 212,411.25 is: 318,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,224.25 : 557,628.44 = 212,411.25 : x
  2. Step 2: Convert to fraction form
    372,224.25/557,628.44 = 212,411.25/x
  3. Step 3: Cross multiply
    372,224.25x = 557,628.44 × 212,411.25
  4. Step 4: Simplify right side
    372,224.25x = 118,446,552,913.89
  5. Step 5: Solve for x
    x = 118,446,552,913.89/372,224.25
  6. Step 6: Final answer
    x = 318,212.89

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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.