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Finding the Fourth Proportional to 463,886.72, 640,170.52 and 270,290.24

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Solution

The fourth proportional to 463,886.72, 640,170.52 and 270,290.24 is: 373,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,886.72 : 640,170.52 = 270,290.24 : x
  2. Step 2: Convert to fraction form
    463,886.72/640,170.52 = 270,290.24/x
  3. Step 3: Cross multiply
    463,886.72x = 640,170.52 × 270,290.24
  4. Step 4: Simplify right side
    463,886.72x = 173,031,843,491.73
  5. Step 5: Solve for x
    x = 173,031,843,491.73/463,886.72
  6. Step 6: Final answer
    x = 373,004.52

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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.