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Finding the Fourth Proportional to 372,143.99, 558,220.30 and 353,993.34

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Solution

The fourth proportional to 372,143.99, 558,220.30 and 353,993.34 is: 530,994.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,143.99 : 558,220.30 = 353,993.34 : x
  2. Step 2: Convert to fraction form
    372,143.99/558,220.30 = 353,993.34/x
  3. Step 3: Cross multiply
    372,143.99x = 558,220.30 × 353,993.34
  4. Step 4: Simplify right side
    372,143.99x = 197,606,271,652.36
  5. Step 5: Solve for x
    x = 197,606,271,652.36/372,143.99
  6. Step 6: Final answer
    x = 530,994.12

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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.