Home / 509,371.81-764,083.09-193,853.17

Finding the Fourth Proportional to 509,371.81, 764,083.09 and 193,853.17

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Solution

The fourth proportional to 509,371.81, 764,083.09 and 193,853.17 is: 290,789.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,371.81 : 764,083.09 = 193,853.17 : x
  2. Step 2: Convert to fraction form
    509,371.81/764,083.09 = 193,853.17/x
  3. Step 3: Cross multiply
    509,371.81x = 764,083.09 × 193,853.17
  4. Step 4: Simplify right side
    509,371.81x = 148,119,925,319.48
  5. Step 5: Solve for x
    x = 148,119,925,319.48/509,371.81
  6. Step 6: Final answer
    x = 290,789.41

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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.