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Finding the Fourth Proportional to 373,142.34, 514,936.62 and 211,997.68

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Solution

The fourth proportional to 373,142.34, 514,936.62 and 211,997.68 is: 292,556.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,142.34 : 514,936.62 = 211,997.68 : x
  2. Step 2: Convert to fraction form
    373,142.34/514,936.62 = 211,997.68/x
  3. Step 3: Cross multiply
    373,142.34x = 514,936.62 × 211,997.68
  4. Step 4: Simplify right side
    373,142.34x = 109,165,368,787.04
  5. Step 5: Solve for x
    x = 109,165,368,787.04/373,142.34
  6. Step 6: Final answer
    x = 292,556.91

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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.