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Finding the Fourth Proportional to 375,728.40, 562,262.20 and 233,640.60

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Solution

The fourth proportional to 375,728.40, 562,262.20 and 233,640.60 is: 349,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,728.40 : 562,262.20 = 233,640.60 : x
  2. Step 2: Convert to fraction form
    375,728.40/562,262.20 = 233,640.60/x
  3. Step 3: Cross multiply
    375,728.40x = 562,262.20 × 233,640.60
  4. Step 4: Simplify right side
    375,728.40x = 131,367,277,765.32
  5. Step 5: Solve for x
    x = 131,367,277,765.32/375,728.40
  6. Step 6: Final answer
    x = 349,633.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.