Home / 691,123.36-1,036,614.94-185,618.64

Finding the Fourth Proportional to 691,123.36, 1,036,614.94 and 185,618.64

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Solution

The fourth proportional to 691,123.36, 1,036,614.94 and 185,618.64 is: 278,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,123.36 : 1,036,614.94 = 185,618.64 : x
  2. Step 2: Convert to fraction form
    691,123.36/1,036,614.94 = 185,618.64/x
  3. Step 3: Cross multiply
    691,123.36x = 1,036,614.94 × 185,618.64
  4. Step 4: Simplify right side
    691,123.36x = 192,415,055,366.48
  5. Step 5: Solve for x
    x = 192,415,055,366.48/691,123.36
  6. Step 6: Final answer
    x = 278,409.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.