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Finding the Fourth Proportional to 328,888, 453,865.44 and 177,985

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Solution

The fourth proportional to 328,888, 453,865.44 and 177,985 is: 245,619.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,888 : 453,865.44 = 177,985 : x
  2. Step 2: Convert to fraction form
    328,888/453,865.44 = 177,985/x
  3. Step 3: Cross multiply
    328,888x = 453,865.44 × 177,985
  4. Step 4: Simplify right side
    328,888x = 80,781,240,338.40
  5. Step 5: Solve for x
    x = 80,781,240,338.40/328,888
  6. Step 6: Final answer
    x = 245,619.30

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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.