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Finding the Fourth Proportional to 577,169,561.53, 796,472,656.51 and 312,845,879.46

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Solution

The fourth proportional to 577,169,561.53, 796,472,656.51 and 312,845,879.46 is: 431,715,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,169,561.53 : 796,472,656.51 = 312,845,879.46 : x
  2. Step 2: Convert to fraction form
    577,169,561.53/796,472,656.51 = 312,845,879.46/x
  3. Step 3: Cross multiply
    577,169,561.53x = 796,472,656.51 × 312,845,879.46
  4. Step 4: Simplify right side
    577,169,561.53x = 249,173,188,695,085,984
  5. Step 5: Solve for x
    x = 249,173,188,695,085,984/577,169,561.53
  6. Step 6: Final answer
    x = 431,715,747.51

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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.