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Finding the Fourth Proportional to 328,860, 453,827.21 and 177,957

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Solution

The fourth proportional to 328,860, 453,827.21 and 177,957 is: 245,580.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,860 : 453,827.21 = 177,957 : x
  2. Step 2: Convert to fraction form
    328,860/453,827.21 = 177,957/x
  3. Step 3: Cross multiply
    328,860x = 453,827.21 × 177,957
  4. Step 4: Simplify right side
    328,860x = 80,761,727,920.19
  5. Step 5: Solve for x
    x = 80,761,727,920.19/328,860
  6. Step 6: Final answer
    x = 245,580.88

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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.