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Finding the Fourth Proportional to 488,720.40, 732,497.40 and 251,941.20

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Solution

The fourth proportional to 488,720.40, 732,497.40 and 251,941.20 is: 377,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,720.40 : 732,497.40 = 251,941.20 : x
  2. Step 2: Convert to fraction form
    488,720.40/732,497.40 = 251,941.20/x
  3. Step 3: Cross multiply
    488,720.40x = 732,497.40 × 251,941.20
  4. Step 4: Simplify right side
    488,720.40x = 184,546,273,952.88
  5. Step 5: Solve for x
    x = 184,546,273,952.88/488,720.40
  6. Step 6: Final answer
    x = 377,611.15

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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.