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Finding the Fourth Proportional to 625,784.68, 863,589.54 and 367,672.24

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Solution

The fourth proportional to 625,784.68, 863,589.54 and 367,672.24 is: 507,391.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,784.68 : 863,589.54 = 367,672.24 : x
  2. Step 2: Convert to fraction form
    625,784.68/863,589.54 = 367,672.24/x
  3. Step 3: Cross multiply
    625,784.68x = 863,589.54 × 367,672.24
  4. Step 4: Simplify right side
    625,784.68x = 317,517,900,612.37
  5. Step 5: Solve for x
    x = 317,517,900,612.37/625,784.68
  6. Step 6: Final answer
    x = 507,391.62

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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.