Home / 426,719.28-640,078.92-293,194.74

Finding the Fourth Proportional to 426,719.28, 640,078.92 and 293,194.74

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Solution

The fourth proportional to 426,719.28, 640,078.92 and 293,194.74 is: 439,792.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,719.28 : 640,078.92 = 293,194.74 : x
  2. Step 2: Convert to fraction form
    426,719.28/640,078.92 = 293,194.74/x
  3. Step 3: Cross multiply
    426,719.28x = 640,078.92 × 293,194.74
  4. Step 4: Simplify right side
    426,719.28x = 187,667,772,528.88
  5. Step 5: Solve for x
    x = 187,667,772,528.88/426,719.28
  6. Step 6: Final answer
    x = 439,792.11

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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.