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Finding the Fourth Proportional to 573,348,957.30, 855,837,770.45 and 491,990,654.52

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Solution

The fourth proportional to 573,348,957.30, 855,837,770.45 and 491,990,654.52 is: 734,394,262.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,348,957.30 : 855,837,770.45 = 491,990,654.52 : x
  2. Step 2: Convert to fraction form
    573,348,957.30/855,837,770.45 = 491,990,654.52/x
  3. Step 3: Cross multiply
    573,348,957.30x = 855,837,770.45 × 491,990,654.52
  4. Step 4: Simplify right side
    573,348,957.30x = 421,064,184,844,173,056
  5. Step 5: Solve for x
    x = 421,064,184,844,173,056/573,348,957.30
  6. Step 6: Final answer
    x = 734,394,262.84

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.