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Finding the Fourth Proportional to 328,529.11, 453,369.54 and 185,288.71

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Solution

The fourth proportional to 328,529.11, 453,369.54 and 185,288.71 is: 255,698.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,529.11 : 453,369.54 = 185,288.71 : x
  2. Step 2: Convert to fraction form
    328,529.11/453,369.54 = 185,288.71/x
  3. Step 3: Cross multiply
    328,529.11x = 453,369.54 × 185,288.71
  4. Step 4: Simplify right side
    328,529.11x = 84,004,257,219.89
  5. Step 5: Solve for x
    x = 84,004,257,219.89/328,529.11
  6. Step 6: Final answer
    x = 255,698.06

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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.