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Finding the Fourth Proportional to 493,372.14, 740,353.44 and 212,889.38

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Solution

The fourth proportional to 493,372.14, 740,353.44 and 212,889.38 is: 319,461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,372.14 : 740,353.44 = 212,889.38 : x
  2. Step 2: Convert to fraction form
    493,372.14/740,353.44 = 212,889.38/x
  3. Step 3: Cross multiply
    493,372.14x = 740,353.44 × 212,889.38
  4. Step 4: Simplify right side
    493,372.14x = 157,613,384,822.47
  5. Step 5: Solve for x
    x = 157,613,384,822.47/493,372.14
  6. Step 6: Final answer
    x = 319,461.46

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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.