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Finding the Fourth Proportional to 327,091.40, 490,637.10 and 169,627.40

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Solution

The fourth proportional to 327,091.40, 490,637.10 and 169,627.40 is: 254,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,091.40 : 490,637.10 = 169,627.40 : x
  2. Step 2: Convert to fraction form
    327,091.40/490,637.10 = 169,627.40/x
  3. Step 3: Cross multiply
    327,091.40x = 490,637.10 × 169,627.40
  4. Step 4: Simplify right side
    327,091.40x = 83,225,495,616.54
  5. Step 5: Solve for x
    x = 83,225,495,616.54/327,091.40
  6. Step 6: Final answer
    x = 254,441.10

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1.5x scale

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.