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Finding the Fourth Proportional to 296,609.26, 409,318.73 and 160,640.10

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Solution

The fourth proportional to 296,609.26, 409,318.73 and 160,640.10 is: 221,682.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,609.26 : 409,318.73 = 160,640.10 : x
  2. Step 2: Convert to fraction form
    296,609.26/409,318.73 = 160,640.10/x
  3. Step 3: Cross multiply
    296,609.26x = 409,318.73 × 160,640.10
  4. Step 4: Simplify right side
    296,609.26x = 65,752,999,672.48
  5. Step 5: Solve for x
    x = 65,752,999,672.48/296,609.26
  6. Step 6: Final answer
    x = 221,682.22

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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.