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Finding the Fourth Proportional to 488,364.40, 732,327.90 and 188,745.40

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Solution

The fourth proportional to 488,364.40, 732,327.90 and 188,745.40 is: 283,033.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,364.40 : 732,327.90 = 188,745.40 : x
  2. Step 2: Convert to fraction form
    488,364.40/732,327.90 = 188,745.40/x
  3. Step 3: Cross multiply
    488,364.40x = 732,327.90 × 188,745.40
  4. Step 4: Simplify right side
    488,364.40x = 138,223,522,416.66
  5. Step 5: Solve for x
    x = 138,223,522,416.66/488,364.40
  6. Step 6: Final answer
    x = 283,033.58

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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.