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Finding the Fourth Proportional to 463,558.55, 694,402.88 and 388,467.90

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Solution

The fourth proportional to 463,558.55, 694,402.88 and 388,467.90 is: 581,918.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,558.55 : 694,402.88 = 388,467.90 : x
  2. Step 2: Convert to fraction form
    463,558.55/694,402.88 = 388,467.90/x
  3. Step 3: Cross multiply
    463,558.55x = 694,402.88 × 388,467.90
  4. Step 4: Simplify right side
    463,558.55x = 269,753,226,605.21
  5. Step 5: Solve for x
    x = 269,753,226,605.21/463,558.55
  6. Step 6: Final answer
    x = 581,918.36

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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.