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Finding the Fourth Proportional to 361,338.86, 541,812.81 and 286,937.66

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Solution

The fourth proportional to 361,338.86, 541,812.81 and 286,937.66 is: 430,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,338.86 : 541,812.81 = 286,937.66 : x
  2. Step 2: Convert to fraction form
    361,338.86/541,812.81 = 286,937.66/x
  3. Step 3: Cross multiply
    361,338.86x = 541,812.81 × 286,937.66
  4. Step 4: Simplify right side
    361,338.86x = 155,466,499,859.43
  5. Step 5: Solve for x
    x = 155,466,499,859.43/361,338.86
  6. Step 6: Final answer
    x = 430,251.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.