Home / 306,905.41-423,550.75-186,051.79

Finding the Fourth Proportional to 306,905.41, 423,550.75 and 186,051.79

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Solution

The fourth proportional to 306,905.41, 423,550.75 and 186,051.79 is: 256,764.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,905.41 : 423,550.75 = 186,051.79 : x
  2. Step 2: Convert to fraction form
    306,905.41/423,550.75 = 186,051.79/x
  3. Step 3: Cross multiply
    306,905.41x = 423,550.75 × 186,051.79
  4. Step 4: Simplify right side
    306,905.41x = 78,802,372,700.76
  5. Step 5: Solve for x
    x = 78,802,372,700.76/306,905.41
  6. Step 6: Final answer
    x = 256,764.37

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1.5x scale

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.