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Finding the Fourth Proportional to 297,809.48, 410,978.76 and 161,844.56

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Solution

The fourth proportional to 297,809.48, 410,978.76 and 161,844.56 is: 223,346.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,809.48 : 410,978.76 = 161,844.56 : x
  2. Step 2: Convert to fraction form
    297,809.48/410,978.76 = 161,844.56/x
  3. Step 3: Cross multiply
    297,809.48x = 410,978.76 × 161,844.56
  4. Step 4: Simplify right side
    297,809.48x = 66,514,676,581.55
  5. Step 5: Solve for x
    x = 66,514,676,581.55/297,809.48
  6. Step 6: Final answer
    x = 223,346.40

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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.