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Finding the Fourth Proportional to 488,420.22, 732,039.75 and 251,633.70

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Solution

The fourth proportional to 488,420.22, 732,039.75 and 251,633.70 is: 377,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,420.22 : 732,039.75 = 251,633.70 : x
  2. Step 2: Convert to fraction form
    488,420.22/732,039.75 = 251,633.70/x
  3. Step 3: Cross multiply
    488,420.22x = 732,039.75 × 251,633.70
  4. Step 4: Simplify right side
    488,420.22x = 184,205,870,839.58
  5. Step 5: Solve for x
    x = 184,205,870,839.58/488,420.22
  6. Step 6: Final answer
    x = 377,146.28

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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.