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Finding the Fourth Proportional to 372,441.96, 513,928.04 and 219,470.22

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Solution

The fourth proportional to 372,441.96, 513,928.04 and 219,470.22 is: 302,844.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,441.96 : 513,928.04 = 219,470.22 : x
  2. Step 2: Convert to fraction form
    372,441.96/513,928.04 = 219,470.22/x
  3. Step 3: Cross multiply
    372,441.96x = 513,928.04 × 219,470.22
  4. Step 4: Simplify right side
    372,441.96x = 112,791,898,905.62
  5. Step 5: Solve for x
    x = 112,791,898,905.62/372,441.96
  6. Step 6: Final answer
    x = 302,844.23

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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.