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Finding the Fourth Proportional to 827,360.19, 1,239,892.11 and 376,980.39

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Solution

The fourth proportional to 827,360.19, 1,239,892.11 and 376,980.39 is: 564,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,360.19 : 1,239,892.11 = 376,980.39 : x
  2. Step 2: Convert to fraction form
    827,360.19/1,239,892.11 = 376,980.39/x
  3. Step 3: Cross multiply
    827,360.19x = 1,239,892.11 × 376,980.39
  4. Step 4: Simplify right side
    827,360.19x = 467,415,011,185.72
  5. Step 5: Solve for x
    x = 467,415,011,185.72/827,360.19
  6. Step 6: Final answer
    x = 564,947.43

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1.5x scale

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.