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Finding the Fourth Proportional to 827,360.44, 1,239,892.49 and 376,980.64

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Solution

The fourth proportional to 827,360.44, 1,239,892.49 and 376,980.64 is: 564,947.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,360.44 : 1,239,892.49 = 376,980.64 : x
  2. Step 2: Convert to fraction form
    827,360.44/1,239,892.49 = 376,980.64/x
  3. Step 3: Cross multiply
    827,360.44x = 1,239,892.49 × 376,980.64
  4. Step 4: Simplify right side
    827,360.44x = 467,415,462,526.49
  5. Step 5: Solve for x
    x = 467,415,462,526.49/827,360.44
  6. Step 6: Final answer
    x = 564,947.80

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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.