Home / 306,912.07-423,559.94-186,058.45

Finding the Fourth Proportional to 306,912.07, 423,559.94 and 186,058.45

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Solution

The fourth proportional to 306,912.07, 423,559.94 and 186,058.45 is: 256,773.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,912.07 : 423,559.94 = 186,058.45 : x
  2. Step 2: Convert to fraction form
    306,912.07/423,559.94 = 186,058.45/x
  3. Step 3: Cross multiply
    306,912.07x = 423,559.94 × 186,058.45
  4. Step 4: Simplify right side
    306,912.07x = 78,806,905,324.74
  5. Step 5: Solve for x
    x = 78,806,905,324.74/306,912.07
  6. Step 6: Final answer
    x = 256,773.56

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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.