Home / 1,215,777.83-1,677,663.09-699,394.32

Finding the Fourth Proportional to 1,215,777.83, 1,677,663.09 and 699,394.32

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Solution

The fourth proportional to 1,215,777.83, 1,677,663.09 and 699,394.32 is: 965,100.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,777.83 : 1,677,663.09 = 699,394.32 : x
  2. Step 2: Convert to fraction form
    1,215,777.83/1,677,663.09 = 699,394.32/x
  3. Step 3: Cross multiply
    1,215,777.83x = 1,677,663.09 × 699,394.32
  4. Step 4: Simplify right side
    1,215,777.83x = 1,173,348,036,019.65
  5. Step 5: Solve for x
    x = 1,173,348,036,019.65/1,215,777.83
  6. Step 6: Final answer
    x = 965,100.70

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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.