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Finding the Fourth Proportional to 374,086.56, 515,152.16 and 325,005.49

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Solution

The fourth proportional to 374,086.56, 515,152.16 and 325,005.49 is: 447,562.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,086.56 : 515,152.16 = 325,005.49 : x
  2. Step 2: Convert to fraction form
    374,086.56/515,152.16 = 325,005.49/x
  3. Step 3: Cross multiply
    374,086.56x = 515,152.16 × 325,005.49
  4. Step 4: Simplify right side
    374,086.56x = 167,427,277,272.45
  5. Step 5: Solve for x
    x = 167,427,277,272.45/374,086.56
  6. Step 6: Final answer
    x = 447,562.93

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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.