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Finding the Fourth Proportional to 371,282.16, 512,369.76 and 201,516.32

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Solution

The fourth proportional to 371,282.16, 512,369.76 and 201,516.32 is: 278,092.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,282.16 : 512,369.76 = 201,516.32 : x
  2. Step 2: Convert to fraction form
    371,282.16/512,369.76 = 201,516.32/x
  3. Step 3: Cross multiply
    371,282.16x = 512,369.76 × 201,516.32
  4. Step 4: Simplify right side
    371,282.16x = 103,250,868,514.48
  5. Step 5: Solve for x
    x = 103,250,868,514.48/371,282.16
  6. Step 6: Final answer
    x = 278,092.73

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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.