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Finding the Fourth Proportional to 719,010.05, 992,593.37 and 447,165.50

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Solution

The fourth proportional to 719,010.05, 992,593.37 and 447,165.50 is: 617,311.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,010.05 : 992,593.37 = 447,165.50 : x
  2. Step 2: Convert to fraction form
    719,010.05/992,593.37 = 447,165.50/x
  3. Step 3: Cross multiply
    719,010.05x = 992,593.37 × 447,165.50
  4. Step 4: Simplify right side
    719,010.05x = 443,853,506,747.68
  5. Step 5: Solve for x
    x = 443,853,506,747.68/719,010.05
  6. Step 6: Final answer
    x = 617,311.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.