Home / 1,284,338.76-1,772,387.44-711,415.83

Finding the Fourth Proportional to 1,284,338.76, 1,772,387.44 and 711,415.83

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Solution

The fourth proportional to 1,284,338.76, 1,772,387.44 and 711,415.83 is: 981,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,338.76 : 1,772,387.44 = 711,415.83 : x
  2. Step 2: Convert to fraction form
    1,284,338.76/1,772,387.44 = 711,415.83/x
  3. Step 3: Cross multiply
    1,284,338.76x = 1,772,387.44 × 711,415.83
  4. Step 4: Simplify right side
    1,284,338.76x = 1,260,904,481,709.18
  5. Step 5: Solve for x
    x = 1,260,904,481,709.18/1,284,338.76
  6. Step 6: Final answer
    x = 981,753.82

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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.