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Finding the Fourth Proportional to 773,662,922.64, 1,067,730,157.80 and 577,752,512.40

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Solution

The fourth proportional to 773,662,922.64, 1,067,730,157.80 and 577,752,512.40 is: 797,354,717.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    773,662,922.64 : 1,067,730,157.80 = 577,752,512.40 : x
  2. Step 2: Convert to fraction form
    773,662,922.64/1,067,730,157.80 = 577,752,512.40/x
  3. Step 3: Cross multiply
    773,662,922.64x = 1,067,730,157.80 × 577,752,512.40
  4. Step 4: Simplify right side
    773,662,922.64x = 616,883,781,234,198,400
  5. Step 5: Solve for x
    x = 616,883,781,234,198,400/773,662,922.64
  6. Step 6: Final answer
    x = 797,354,717.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.