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Finding the Fourth Proportional to 590,468.79, 815,239.14 and 454,262.43

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Solution

The fourth proportional to 590,468.79, 815,239.14 and 454,262.43 is: 627,183.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,468.79 : 815,239.14 = 454,262.43 : x
  2. Step 2: Convert to fraction form
    590,468.79/815,239.14 = 454,262.43/x
  3. Step 3: Cross multiply
    590,468.79x = 815,239.14 × 454,262.43
  4. Step 4: Simplify right side
    590,468.79x = 370,332,517,528.14
  5. Step 5: Solve for x
    x = 370,332,517,528.14/590,468.79
  6. Step 6: Final answer
    x = 627,183.89

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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.