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Finding the Fourth Proportional to 372,568.01, 513,164.43 and 286,362.14

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Solution

The fourth proportional to 372,568.01, 513,164.43 and 286,362.14 is: 394,426.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,568.01 : 513,164.43 = 286,362.14 : x
  2. Step 2: Convert to fraction form
    372,568.01/513,164.43 = 286,362.14/x
  3. Step 3: Cross multiply
    372,568.01x = 513,164.43 × 286,362.14
  4. Step 4: Simplify right side
    372,568.01x = 146,950,861,780.86
  5. Step 5: Solve for x
    x = 146,950,861,780.86/372,568.01
  6. Step 6: Final answer
    x = 394,426.95

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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.