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Finding the Fourth Proportional to 483,423.40, 725,912.70 and 351,231.40

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Solution

The fourth proportional to 483,423.40, 725,912.70 and 351,231.40 is: 527,412.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,423.40 : 725,912.70 = 351,231.40 : x
  2. Step 2: Convert to fraction form
    483,423.40/725,912.70 = 351,231.40/x
  3. Step 3: Cross multiply
    483,423.40x = 725,912.70 × 351,231.40
  4. Step 4: Simplify right side
    483,423.40x = 254,963,333,898.78
  5. Step 5: Solve for x
    x = 254,963,333,898.78/483,423.40
  6. Step 6: Final answer
    x = 527,412.07

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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.