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Finding the Fourth Proportional to 673,137.80, 1,008,477.90 and 410,174.60

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Solution

The fourth proportional to 673,137.80, 1,008,477.90 and 410,174.60 is: 614,513.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,137.80 : 1,008,477.90 = 410,174.60 : x
  2. Step 2: Convert to fraction form
    673,137.80/1,008,477.90 = 410,174.60/x
  3. Step 3: Cross multiply
    673,137.80x = 1,008,477.90 × 410,174.60
  4. Step 4: Simplify right side
    673,137.80x = 413,652,019,241.34
  5. Step 5: Solve for x
    x = 413,652,019,241.34/673,137.80
  6. Step 6: Final answer
    x = 614,513.13

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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.