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Finding the Fourth Proportional to 464,512.38, 640,875.42 and 270,876.21

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Solution

The fourth proportional to 464,512.38, 640,875.42 and 270,876.21 is: 373,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,512.38 : 640,875.42 = 270,876.21 : x
  2. Step 2: Convert to fraction form
    464,512.38/640,875.42 = 270,876.21/x
  3. Step 3: Cross multiply
    464,512.38x = 640,875.42 × 270,876.21
  4. Step 4: Simplify right side
    464,512.38x = 173,597,904,851.76
  5. Step 5: Solve for x
    x = 173,597,904,851.76/464,512.38
  6. Step 6: Final answer
    x = 373,720.73

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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.