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Finding the Fourth Proportional to 306,641.34, 423,227.97 and 179,348.22

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Solution

The fourth proportional to 306,641.34, 423,227.97 and 179,348.22 is: 247,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,641.34 : 423,227.97 = 179,348.22 : x
  2. Step 2: Convert to fraction form
    306,641.34/423,227.97 = 179,348.22/x
  3. Step 3: Cross multiply
    306,641.34x = 423,227.97 × 179,348.22
  4. Step 4: Simplify right side
    306,641.34x = 75,905,183,073.71
  5. Step 5: Solve for x
    x = 75,905,183,073.71/306,641.34
  6. Step 6: Final answer
    x = 247,537.34

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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.