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Finding the Fourth Proportional to 525,168.45, 787,801.68 and 406,972.44

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Solution

The fourth proportional to 525,168.45, 787,801.68 and 406,972.44 is: 610,496.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,168.45 : 787,801.68 = 406,972.44 : x
  2. Step 2: Convert to fraction form
    525,168.45/787,801.68 = 406,972.44/x
  3. Step 3: Cross multiply
    525,168.45x = 787,801.68 × 406,972.44
  4. Step 4: Simplify right side
    525,168.45x = 320,613,571,945.70
  5. Step 5: Solve for x
    x = 320,613,571,945.70/525,168.45
  6. Step 6: Final answer
    x = 610,496.64

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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.