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Finding the Fourth Proportional to 371,239.10, 512,310.22 and 201,473.22

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Solution

The fourth proportional to 371,239.10, 512,310.22 and 201,473.22 is: 278,033.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,239.10 : 512,310.22 = 201,473.22 : x
  2. Step 2: Convert to fraction form
    371,239.10/512,310.22 = 201,473.22/x
  3. Step 3: Cross multiply
    371,239.10x = 512,310.22 × 201,473.22
  4. Step 4: Simplify right side
    371,239.10x = 103,216,791,079.79
  5. Step 5: Solve for x
    x = 103,216,791,079.79/371,239.10
  6. Step 6: Final answer
    x = 278,033.19

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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.