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Finding the Fourth Proportional to 328,572.25, 453,478.92 and 201,321.66

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Solution

The fourth proportional to 328,572.25, 453,478.92 and 201,321.66 is: 277,854.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,572.25 : 453,478.92 = 201,321.66 : x
  2. Step 2: Convert to fraction form
    328,572.25/453,478.92 = 201,321.66/x
  3. Step 3: Cross multiply
    328,572.25x = 453,478.92 × 201,321.66
  4. Step 4: Simplify right side
    328,572.25x = 91,295,128,949.41
  5. Step 5: Solve for x
    x = 91,295,128,949.41/328,572.25
  6. Step 6: Final answer
    x = 277,854.05

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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.