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Finding the Fourth Proportional to 418,145.26, 624,057.96 and 377,789.06

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Solution

The fourth proportional to 418,145.26, 624,057.96 and 377,789.06 is: 563,828.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,145.26 : 624,057.96 = 377,789.06 : x
  2. Step 2: Convert to fraction form
    418,145.26/624,057.96 = 377,789.06/x
  3. Step 3: Cross multiply
    418,145.26x = 624,057.96 × 377,789.06
  4. Step 4: Simplify right side
    418,145.26x = 235,762,268,204.97
  5. Step 5: Solve for x
    x = 235,762,268,204.97/418,145.26
  6. Step 6: Final answer
    x = 563,828.63

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.