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Finding the Fourth Proportional to 433,778.28, 650,697.81 and 134,219.40

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Solution

The fourth proportional to 433,778.28, 650,697.81 and 134,219.40 is: 201,338.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,778.28 : 650,697.81 = 134,219.40 : x
  2. Step 2: Convert to fraction form
    433,778.28/650,697.81 = 134,219.40/x
  3. Step 3: Cross multiply
    433,778.28x = 650,697.81 × 134,219.40
  4. Step 4: Simplify right side
    433,778.28x = 87,336,269,639.51
  5. Step 5: Solve for x
    x = 87,336,269,639.51/433,778.28
  6. Step 6: Final answer
    x = 201,338.50

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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.