Home / 393,330.96-589,999.85-127,091.50

Finding the Fourth Proportional to 393,330.96, 589,999.85 and 127,091.50

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Solution

The fourth proportional to 393,330.96, 589,999.85 and 127,091.50 is: 190,638.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,330.96 : 589,999.85 = 127,091.50 : x
  2. Step 2: Convert to fraction form
    393,330.96/589,999.85 = 127,091.50/x
  3. Step 3: Cross multiply
    393,330.96x = 589,999.85 × 127,091.50
  4. Step 4: Simplify right side
    393,330.96x = 74,983,965,936.28
  5. Step 5: Solve for x
    x = 74,983,965,936.28/393,330.96
  6. Step 6: Final answer
    x = 190,638.35

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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.