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Finding the Fourth Proportional to 463,884.72, 640,167.76 and 270,288.24

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Solution

The fourth proportional to 463,884.72, 640,167.76 and 270,288.24 is: 373,001.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,884.72 : 640,167.76 = 270,288.24 : x
  2. Step 2: Convert to fraction form
    463,884.72/640,167.76 = 270,288.24/x
  3. Step 3: Cross multiply
    463,884.72x = 640,167.76 × 270,288.24
  4. Step 4: Simplify right side
    463,884.72x = 173,029,817,155.14
  5. Step 5: Solve for x
    x = 173,029,817,155.14/463,884.72
  6. Step 6: Final answer
    x = 373,001.76

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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.