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Finding the Fourth Proportional to 372,144.99, 558,221.80 and 353,994.34

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Solution

The fourth proportional to 372,144.99, 558,221.80 and 353,994.34 is: 530,995.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,144.99 : 558,221.80 = 353,994.34 : x
  2. Step 2: Convert to fraction form
    372,144.99/558,221.80 = 353,994.34/x
  3. Step 3: Cross multiply
    372,144.99x = 558,221.80 × 353,994.34
  4. Step 4: Simplify right side
    372,144.99x = 197,607,357,664.61
  5. Step 5: Solve for x
    x = 197,607,357,664.61/372,144.99
  6. Step 6: Final answer
    x = 530,995.61

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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.