Home / 1,205,112.44-1,663,115.28-688,892.96

Finding the Fourth Proportional to 1,205,112.44, 1,663,115.28 and 688,892.96

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Solution

The fourth proportional to 1,205,112.44, 1,663,115.28 and 688,892.96 is: 950,706.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,205,112.44 : 1,663,115.28 = 688,892.96 : x
  2. Step 2: Convert to fraction form
    1,205,112.44/1,663,115.28 = 688,892.96/x
  3. Step 3: Cross multiply
    1,205,112.44x = 1,663,115.28 × 688,892.96
  4. Step 4: Simplify right side
    1,205,112.44x = 1,145,708,408,060.43
  5. Step 5: Solve for x
    x = 1,145,708,408,060.43/1,205,112.44
  6. Step 6: Final answer
    x = 950,706.65

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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.