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Finding the Fourth Proportional to 614,406.36, 921,608.82 and 171,174.36

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Solution

The fourth proportional to 614,406.36, 921,608.82 and 171,174.36 is: 256,761.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,406.36 : 921,608.82 = 171,174.36 : x
  2. Step 2: Convert to fraction form
    614,406.36/921,608.82 = 171,174.36/x
  3. Step 3: Cross multiply
    614,406.36x = 921,608.82 × 171,174.36
  4. Step 4: Simplify right side
    614,406.36x = 157,755,799,933.86
  5. Step 5: Solve for x
    x = 157,755,799,933.86/614,406.36
  6. Step 6: Final answer
    x = 256,761.34

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1.5x scale

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.