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Finding the Fourth Proportional to 316,313.71, 436,512.44 and 173,073.71

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Solution

The fourth proportional to 316,313.71, 436,512.44 and 173,073.71 is: 238,841.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,313.71 : 436,512.44 = 173,073.71 : x
  2. Step 2: Convert to fraction form
    316,313.71/436,512.44 = 173,073.71/x
  3. Step 3: Cross multiply
    316,313.71x = 436,512.44 × 173,073.71
  4. Step 4: Simplify right side
    316,313.71x = 75,548,828,975.92
  5. Step 5: Solve for x
    x = 75,548,828,975.92/316,313.71
  6. Step 6: Final answer
    x = 238,841.46

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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.