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Finding the Fourth Proportional to 373,190.70, 514,983.72 and 212,023.38

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Solution

The fourth proportional to 373,190.70, 514,983.72 and 212,023.38 is: 292,581.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,190.70 : 514,983.72 = 212,023.38 : x
  2. Step 2: Convert to fraction form
    373,190.70/514,983.72 = 212,023.38/x
  3. Step 3: Cross multiply
    373,190.70x = 514,983.72 × 212,023.38
  4. Step 4: Simplify right side
    373,190.70x = 109,188,588,959.37
  5. Step 5: Solve for x
    x = 109,188,588,959.37/373,190.70
  6. Step 6: Final answer
    x = 292,581.22

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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.