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Finding the Fourth Proportional to 724,814.45, 1,000,693.45 and 467,135.27

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Solution

The fourth proportional to 724,814.45, 1,000,693.45 and 467,135.27 is: 644,936.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,814.45 : 1,000,693.45 = 467,135.27 : x
  2. Step 2: Convert to fraction form
    724,814.45/1,000,693.45 = 467,135.27/x
  3. Step 3: Cross multiply
    724,814.45x = 1,000,693.45 × 467,135.27
  4. Step 4: Simplify right side
    724,814.45x = 467,459,204,952.98
  5. Step 5: Solve for x
    x = 467,459,204,952.98/724,814.45
  6. Step 6: Final answer
    x = 644,936.38

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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.