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Finding the Fourth Proportional to 372,855.24, 514,844.04 and 303,955.80

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Solution

The fourth proportional to 372,855.24, 514,844.04 and 303,955.80 is: 419,706.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,855.24 : 514,844.04 = 303,955.80 : x
  2. Step 2: Convert to fraction form
    372,855.24/514,844.04 = 303,955.80/x
  3. Step 3: Cross multiply
    372,855.24x = 514,844.04 × 303,955.80
  4. Step 4: Simplify right side
    372,855.24x = 156,489,832,053.43
  5. Step 5: Solve for x
    x = 156,489,832,053.43/372,855.24
  6. Step 6: Final answer
    x = 419,706.67

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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.