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Finding the Fourth Proportional to 664,495.11, 997,182.90 and 365,184.72

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Solution

The fourth proportional to 664,495.11, 997,182.90 and 365,184.72 is: 548,019.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,495.11 : 997,182.90 = 365,184.72 : x
  2. Step 2: Convert to fraction form
    664,495.11/997,182.90 = 365,184.72/x
  3. Step 3: Cross multiply
    664,495.11x = 997,182.90 × 365,184.72
  4. Step 4: Simplify right side
    664,495.11x = 364,155,958,125.29
  5. Step 5: Solve for x
    x = 364,155,958,125.29/664,495.11
  6. Step 6: Final answer
    x = 548,019.02

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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.