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Finding the Fourth Proportional to 591,622.40, 886,121.40 and 512,890.40

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Solution

The fourth proportional to 591,622.40, 886,121.40 and 512,890.40 is: 768,198.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,622.40 : 886,121.40 = 512,890.40 : x
  2. Step 2: Convert to fraction form
    591,622.40/886,121.40 = 512,890.40/x
  3. Step 3: Cross multiply
    591,622.40x = 886,121.40 × 512,890.40
  4. Step 4: Simplify right side
    591,622.40x = 454,483,159,294.56
  5. Step 5: Solve for x
    x = 454,483,159,294.56/591,622.40
  6. Step 6: Final answer
    x = 768,198.03

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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.