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Finding the Fourth Proportional to 678,056.06, 935,761.11 and 376,250.06

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Solution

The fourth proportional to 678,056.06, 935,761.11 and 376,250.06 is: 519,249.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,056.06 : 935,761.11 = 376,250.06 : x
  2. Step 2: Convert to fraction form
    678,056.06/935,761.11 = 376,250.06/x
  3. Step 3: Cross multiply
    678,056.06x = 935,761.11 × 376,250.06
  4. Step 4: Simplify right side
    678,056.06x = 352,080,174,711.63
  5. Step 5: Solve for x
    x = 352,080,174,711.63/678,056.06
  6. Step 6: Final answer
    x = 519,249.36

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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.