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Finding the Fourth Proportional to 328,887, 453,864.06 and 177,984

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Solution

The fourth proportional to 328,887, 453,864.06 and 177,984 is: 245,617.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,887 : 453,864.06 = 177,984 : x
  2. Step 2: Convert to fraction form
    328,887/453,864.06 = 177,984/x
  3. Step 3: Cross multiply
    328,887x = 453,864.06 × 177,984
  4. Step 4: Simplify right side
    328,887x = 80,780,540,855.04
  5. Step 5: Solve for x
    x = 80,780,540,855.04/328,887
  6. Step 6: Final answer
    x = 245,617.92

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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.