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Finding the Fourth Proportional to 463,932.76, 640,228.42 and 270,455.34

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Solution

The fourth proportional to 463,932.76, 640,228.42 and 270,455.34 is: 373,229.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,932.76 : 640,228.42 = 270,455.34 : x
  2. Step 2: Convert to fraction form
    463,932.76/640,228.42 = 270,455.34/x
  3. Step 3: Cross multiply
    463,932.76x = 640,228.42 × 270,455.34
  4. Step 4: Simplify right side
    463,932.76x = 173,153,195,008.76
  5. Step 5: Solve for x
    x = 173,153,195,008.76/463,932.76
  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.