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Finding the Fourth Proportional to 361,785.60, 499,228.56 and 200,637.84

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Solution

The fourth proportional to 361,785.60, 499,228.56 and 200,637.84 is: 276,860.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,785.60 : 499,228.56 = 200,637.84 : x
  2. Step 2: Convert to fraction form
    361,785.60/499,228.56 = 200,637.84/x
  3. Step 3: Cross multiply
    361,785.60x = 499,228.56 × 200,637.84
  4. Step 4: Simplify right side
    361,785.60x = 100,164,139,944.71
  5. Step 5: Solve for x
    x = 100,164,139,944.71/361,785.60
  6. Step 6: Final answer
    x = 276,860.49

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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.