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Finding the Fourth Proportional to 544,338,712.80, 816,508,069.20 and 488,218,543.20

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Solution

The fourth proportional to 544,338,712.80, 816,508,069.20 and 488,218,543.20 is: 732,327,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,338,712.80 : 816,508,069.20 = 488,218,543.20 : x
  2. Step 2: Convert to fraction form
    544,338,712.80/816,508,069.20 = 488,218,543.20/x
  3. Step 3: Cross multiply
    544,338,712.80x = 816,508,069.20 × 488,218,543.20
  4. Step 4: Simplify right side
    544,338,712.80x = 398,634,380,055,868,800
  5. Step 5: Solve for x
    x = 398,634,380,055,868,800/544,338,712.80
  6. Step 6: Final answer
    x = 732,327,814.80

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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.