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Finding the Fourth Proportional to 328,395.82, 453,186.87 and 185,155.54

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Solution

The fourth proportional to 328,395.82, 453,186.87 and 185,155.54 is: 255,515.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,395.82 : 453,186.87 = 185,155.54 : x
  2. Step 2: Convert to fraction form
    328,395.82/453,186.87 = 185,155.54/x
  3. Step 3: Cross multiply
    328,395.82x = 453,186.87 × 185,155.54
  4. Step 4: Simplify right side
    328,395.82x = 83,910,059,635.76
  5. Step 5: Solve for x
    x = 83,910,059,635.76/328,395.82
  6. Step 6: Final answer
    x = 255,515.01

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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.