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Finding the Fourth Proportional to 488,674.40, 731,845.20 and 488,674.40

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Solution

The fourth proportional to 488,674.40, 731,845.20 and 488,674.40 is: 731,845.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,674.40 : 731,845.20 = 488,674.40 : x
  2. Step 2: Convert to fraction form
    488,674.40/731,845.20 = 488,674.40/x
  3. Step 3: Cross multiply
    488,674.40x = 731,845.20 × 488,674.40
  4. Step 4: Simplify right side
    488,674.40x = 357,634,014,002.88
  5. Step 5: Solve for x
    x = 357,634,014,002.88/488,674.40
  6. Step 6: Final answer
    x = 731,845.20

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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.