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Finding the Fourth Proportional to 328,953.10, 453,959.10 and 192,989.38

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Solution

The fourth proportional to 328,953.10, 453,959.10 and 192,989.38 is: 266,327.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,953.10 : 453,959.10 = 192,989.38 : x
  2. Step 2: Convert to fraction form
    328,953.10/453,959.10 = 192,989.38/x
  3. Step 3: Cross multiply
    328,953.10x = 453,959.10 × 192,989.38
  4. Step 4: Simplify right side
    328,953.10x = 87,609,285,254.36
  5. Step 5: Solve for x
    x = 87,609,285,254.36/328,953.10
  6. Step 6: Final answer
    x = 266,327.59

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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.