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Finding the Fourth Proportional to 373,593.96, 515,538.54 and 212,488.20

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Solution

The fourth proportional to 373,593.96, 515,538.54 and 212,488.20 is: 293,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,593.96 : 515,538.54 = 212,488.20 : x
  2. Step 2: Convert to fraction form
    373,593.96/515,538.54 = 212,488.20/x
  3. Step 3: Cross multiply
    373,593.96x = 515,538.54 × 212,488.20
  4. Step 4: Simplify right side
    373,593.96x = 109,545,856,395.23
  5. Step 5: Solve for x
    x = 109,545,856,395.23/373,593.96
  6. Step 6: Final answer
    x = 293,221.70

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1.5x scale

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.