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Finding the Fourth Proportional to 577,169,542.72, 796,472,630.55 and 312,845,860.67

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Solution

The fourth proportional to 577,169,542.72, 796,472,630.55 and 312,845,860.67 is: 431,715,721.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,169,542.72 : 796,472,630.55 = 312,845,860.67 : x
  2. Step 2: Convert to fraction form
    577,169,542.72/796,472,630.55 = 312,845,860.67/x
  3. Step 3: Cross multiply
    577,169,542.72x = 796,472,630.55 × 312,845,860.67
  4. Step 4: Simplify right side
    577,169,542.72x = 249,173,165,600,531,328
  5. Step 5: Solve for x
    x = 249,173,165,600,531,328/577,169,542.72
  6. Step 6: Final answer
    x = 431,715,721.56

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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.