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Finding the Fourth Proportional to 328,697.71, 453,624.24 and 185,405.47

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Solution

The fourth proportional to 328,697.71, 453,624.24 and 185,405.47 is: 255,871.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,697.71 : 453,624.24 = 185,405.47 : x
  2. Step 2: Convert to fraction form
    328,697.71/453,624.24 = 185,405.47/x
  3. Step 3: Cross multiply
    328,697.71x = 453,624.24 × 185,405.47
  4. Step 4: Simplify right side
    328,697.71x = 84,104,415,420.59
  5. Step 5: Solve for x
    x = 84,104,415,420.59/328,697.71
  6. Step 6: Final answer
    x = 255,871.62

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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.