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Finding the Fourth Proportional to 577,169,542.64, 796,472,630.44 and 312,845,860.58

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Solution

The fourth proportional to 577,169,542.64, 796,472,630.44 and 312,845,860.58 is: 431,715,721.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,169,542.64 : 796,472,630.44 = 312,845,860.58 : x
  2. Step 2: Convert to fraction form
    577,169,542.64/796,472,630.44 = 312,845,860.58/x
  3. Step 3: Cross multiply
    577,169,542.64x = 796,472,630.44 × 312,845,860.58
  4. Step 4: Simplify right side
    577,169,542.64x = 249,173,165,493,653,632
  5. Step 5: Solve for x
    x = 249,173,165,493,653,632/577,169,542.64
  6. Step 6: Final answer
    x = 431,715,721.44

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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.