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Finding the Fourth Proportional to 488,563.40, 732,261.90 and 251,784.20

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Solution

The fourth proportional to 488,563.40, 732,261.90 and 251,784.20 is: 377,375.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,563.40 : 732,261.90 = 251,784.20 : x
  2. Step 2: Convert to fraction form
    488,563.40/732,261.90 = 251,784.20/x
  3. Step 3: Cross multiply
    488,563.40x = 732,261.90 × 251,784.20
  4. Step 4: Simplify right side
    488,563.40x = 184,371,976,681.98
  5. Step 5: Solve for x
    x = 184,371,976,681.98/488,563.40
  6. Step 6: Final answer
    x = 377,375.74

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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.