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Finding the Fourth Proportional to 374,087.56, 515,153.53 and 325,006.49

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Solution

The fourth proportional to 374,087.56, 515,153.53 and 325,006.49 is: 447,564.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,087.56 : 515,153.53 = 325,006.49 : x
  2. Step 2: Convert to fraction form
    374,087.56/515,153.53 = 325,006.49/x
  3. Step 3: Cross multiply
    374,087.56x = 515,153.53 × 325,006.49
  4. Step 4: Simplify right side
    374,087.56x = 167,428,240,596.41
  5. Step 5: Solve for x
    x = 167,428,240,596.41/374,087.56
  6. Step 6: Final answer
    x = 447,564.31

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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.