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Finding the Fourth Proportional to 327,924.60, 491,886.90 and 103,313.40

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Solution

The fourth proportional to 327,924.60, 491,886.90 and 103,313.40 is: 154,970.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,924.60 : 491,886.90 = 103,313.40 : x
  2. Step 2: Convert to fraction form
    327,924.60/491,886.90 = 103,313.40/x
  3. Step 3: Cross multiply
    327,924.60x = 491,886.90 × 103,313.40
  4. Step 4: Simplify right side
    327,924.60x = 50,818,508,054.46
  5. Step 5: Solve for x
    x = 50,818,508,054.46/327,924.60
  6. Step 6: Final answer
    x = 154,970.10

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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.