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Finding the Fourth Proportional to 372,145.99, 558,223.30 and 353,995.34

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Solution

The fourth proportional to 372,145.99, 558,223.30 and 353,995.34 is: 530,997.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,145.99 : 558,223.30 = 353,995.34 : x
  2. Step 2: Convert to fraction form
    372,145.99/558,223.30 = 353,995.34/x
  3. Step 3: Cross multiply
    372,145.99x = 558,223.30 × 353,995.34
  4. Step 4: Simplify right side
    372,145.99x = 197,608,446,879.42
  5. Step 5: Solve for x
    x = 197,608,446,879.42/372,145.99
  6. Step 6: Final answer
    x = 530,997.11

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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.