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Finding the Fourth Proportional to 574,278, 861,456.54 and 195,043.92

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Solution

The fourth proportional to 574,278, 861,456.54 and 195,043.92 is: 292,579.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,278 : 861,456.54 = 195,043.92 : x
  2. Step 2: Convert to fraction form
    574,278/861,456.54 = 195,043.92/x
  3. Step 3: Cross multiply
    574,278x = 861,456.54 × 195,043.92
  4. Step 4: Simplify right side
    574,278x = 168,021,860,471.24
  5. Step 5: Solve for x
    x = 168,021,860,471.24/574,278
  6. Step 6: Final answer
    x = 292,579.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.