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Finding the Fourth Proportional to 827,343.32, 1,239,866.80 and 376,963.47

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Solution

The fourth proportional to 827,343.32, 1,239,866.80 and 376,963.47 is: 564,922.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,343.32 : 1,239,866.80 = 376,963.47 : x
  2. Step 2: Convert to fraction form
    827,343.32/1,239,866.80 = 376,963.47/x
  3. Step 3: Cross multiply
    827,343.32x = 1,239,866.80 × 376,963.47
  4. Step 4: Simplify right side
    827,343.32x = 467,384,490,323.39
  5. Step 5: Solve for x
    x = 467,384,490,323.39/827,343.32
  6. Step 6: Final answer
    x = 564,922.06

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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.