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Finding the Fourth Proportional to 367,574.40, 551,491.20 and 354,614.40

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Solution

The fourth proportional to 367,574.40, 551,491.20 and 354,614.40 is: 532,046.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,574.40 : 551,491.20 = 354,614.40 : x
  2. Step 2: Convert to fraction form
    367,574.40/551,491.20 = 354,614.40/x
  3. Step 3: Cross multiply
    367,574.40x = 551,491.20 × 354,614.40
  4. Step 4: Simplify right side
    367,574.40x = 195,566,720,993.28
  5. Step 5: Solve for x
    x = 195,566,720,993.28/367,574.40
  6. Step 6: Final answer
    x = 532,046.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.