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Finding the Fourth Proportional to 692,447.87, 955,737.48 and 406,060.22

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Solution

The fourth proportional to 692,447.87, 955,737.48 and 406,060.22 is: 560,456.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,447.87 : 955,737.48 = 406,060.22 : x
  2. Step 2: Convert to fraction form
    692,447.87/955,737.48 = 406,060.22/x
  3. Step 3: Cross multiply
    692,447.87x = 955,737.48 × 406,060.22
  4. Step 4: Simplify right side
    692,447.87x = 388,086,966,612.36
  5. Step 5: Solve for x
    x = 388,086,966,612.36/692,447.87
  6. Step 6: Final answer
    x = 560,456.59

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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.