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Finding the Fourth Proportional to 463,932.75, 640,228.41 and 270,455.34

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Solution

The fourth proportional to 463,932.75, 640,228.41 and 270,455.34 is: 373,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,932.75 : 640,228.41 = 270,455.34 : x
  2. Step 2: Convert to fraction form
    463,932.75/640,228.41 = 270,455.34/x
  3. Step 3: Cross multiply
    463,932.75x = 640,228.41 × 270,455.34
  4. Step 4: Simplify right side
    463,932.75x = 173,153,192,304.21
  5. Step 5: Solve for x
    x = 173,153,192,304.21/463,932.75
  6. Step 6: Final answer
    x = 373,229.08

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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.