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Finding the Fourth Proportional to 463,145.28, 639,260.64 and 262,057.92

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Solution

The fourth proportional to 463,145.28, 639,260.64 and 262,057.92 is: 361,707.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,145.28 : 639,260.64 = 262,057.92 : x
  2. Step 2: Convert to fraction form
    463,145.28/639,260.64 = 262,057.92/x
  3. Step 3: Cross multiply
    463,145.28x = 639,260.64 × 262,057.92
  4. Step 4: Simplify right side
    463,145.28x = 167,523,313,656.27
  5. Step 5: Solve for x
    x = 167,523,313,656.27/463,145.28
  6. Step 6: Final answer
    x = 361,707.92

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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.