Home / 1,424,331.64-1,965,764.76-812,344.11

Finding the Fourth Proportional to 1,424,331.64, 1,965,764.76 and 812,344.11

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Solution

The fourth proportional to 1,424,331.64, 1,965,764.76 and 812,344.11 is: 1,121,141.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,424,331.64 : 1,965,764.76 = 812,344.11 : x
  2. Step 2: Convert to fraction form
    1,424,331.64/1,965,764.76 = 812,344.11/x
  3. Step 3: Cross multiply
    1,424,331.64x = 1,965,764.76 × 812,344.11
  4. Step 4: Simplify right side
    1,424,331.64x = 1,596,877,424,431.56
  5. Step 5: Solve for x
    x = 1,596,877,424,431.56/1,424,331.64
  6. Step 6: Final answer
    x = 1,121,141.58

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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.