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Finding the Fourth Proportional to 483,975.40, 726,108.90 and 344,007.40

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Solution

The fourth proportional to 483,975.40, 726,108.90 and 344,007.40 is: 516,114.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,975.40 : 726,108.90 = 344,007.40 : x
  2. Step 2: Convert to fraction form
    483,975.40/726,108.90 = 344,007.40/x
  3. Step 3: Cross multiply
    483,975.40x = 726,108.90 × 344,007.40
  4. Step 4: Simplify right side
    483,975.40x = 249,786,834,805.86
  5. Step 5: Solve for x
    x = 249,786,834,805.86/483,975.40
  6. Step 6: Final answer
    x = 516,114.73

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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.