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Finding the Fourth Proportional to 328,903.84, 453,889.83 and 192,940.03

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Solution

The fourth proportional to 328,903.84, 453,889.83 and 192,940.03 is: 266,258.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,903.84 : 453,889.83 = 192,940.03 : x
  2. Step 2: Convert to fraction form
    328,903.84/453,889.83 = 192,940.03/x
  3. Step 3: Cross multiply
    328,903.84x = 453,889.83 × 192,940.03
  4. Step 4: Simplify right side
    328,903.84x = 87,573,515,069.36
  5. Step 5: Solve for x
    x = 87,573,515,069.36/328,903.84
  6. Step 6: Final answer
    x = 266,258.72

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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.