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Finding the Fourth Proportional to 398,320.88, 597,189.70 and 187,844

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Solution

The fourth proportional to 398,320.88, 597,189.70 and 187,844 is: 281,628.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,320.88 : 597,189.70 = 187,844 : x
  2. Step 2: Convert to fraction form
    398,320.88/597,189.70 = 187,844/x
  3. Step 3: Cross multiply
    398,320.88x = 597,189.70 × 187,844
  4. Step 4: Simplify right side
    398,320.88x = 112,178,502,006.80
  5. Step 5: Solve for x
    x = 112,178,502,006.80/398,320.88
  6. Step 6: Final answer
    x = 281,628.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.