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Finding the Fourth Proportional to 328,439.71, 453,258 and 190,608.03

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Solution

The fourth proportional to 328,439.71, 453,258 and 190,608.03 is: 263,045.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,439.71 : 453,258 = 190,608.03 : x
  2. Step 2: Convert to fraction form
    328,439.71/453,258 = 190,608.03/x
  3. Step 3: Cross multiply
    328,439.71x = 453,258 × 190,608.03
  4. Step 4: Simplify right side
    328,439.71x = 86,394,614,461.74
  5. Step 5: Solve for x
    x = 86,394,614,461.74/328,439.71
  6. Step 6: Final answer
    x = 263,045.58

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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.