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Finding the Fourth Proportional to 326,956.16, 451,253.70 and 190,989.70

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Solution

The fourth proportional to 326,956.16, 451,253.70 and 190,989.70 is: 263,597.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,956.16 : 451,253.70 = 190,989.70 : x
  2. Step 2: Convert to fraction form
    326,956.16/451,253.70 = 190,989.70/x
  3. Step 3: Cross multiply
    326,956.16x = 451,253.70 × 190,989.70
  4. Step 4: Simplify right side
    326,956.16x = 86,184,807,658.76
  5. Step 5: Solve for x
    x = 86,184,807,658.76/326,956.16
  6. Step 6: Final answer
    x = 263,597.44

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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.