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Finding the Fourth Proportional to 488,403.40, 732,021.90 and 251,624.20

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Solution

The fourth proportional to 488,403.40, 732,021.90 and 251,624.20 is: 377,135.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,403.40 : 732,021.90 = 251,624.20 : x
  2. Step 2: Convert to fraction form
    488,403.40/732,021.90 = 251,624.20/x
  3. Step 3: Cross multiply
    488,403.40x = 732,021.90 × 251,624.20
  4. Step 4: Simplify right side
    488,403.40x = 184,194,424,969.98
  5. Step 5: Solve for x
    x = 184,194,424,969.98/488,403.40
  6. Step 6: Final answer
    x = 377,135.84

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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.