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Finding the Fourth Proportional to 374,429.40, 516,720.06 and 204,670.68

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Solution

The fourth proportional to 374,429.40, 516,720.06 and 204,670.68 is: 282,449.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,429.40 : 516,720.06 = 204,670.68 : x
  2. Step 2: Convert to fraction form
    374,429.40/516,720.06 = 204,670.68/x
  3. Step 3: Cross multiply
    374,429.40x = 516,720.06 × 204,670.68
  4. Step 4: Simplify right side
    374,429.40x = 105,757,446,049.84
  5. Step 5: Solve for x
    x = 105,757,446,049.84/374,429.40
  6. Step 6: Final answer
    x = 282,449.63

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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.