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Finding the Fourth Proportional to 433,953.38, 650,991.70 and 134,457.50

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Solution

The fourth proportional to 433,953.38, 650,991.70 and 134,457.50 is: 201,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,953.38 : 650,991.70 = 134,457.50 : x
  2. Step 2: Convert to fraction form
    433,953.38/650,991.70 = 134,457.50/x
  3. Step 3: Cross multiply
    433,953.38x = 650,991.70 × 134,457.50
  4. Step 4: Simplify right side
    433,953.38x = 87,530,716,502.75
  5. Step 5: Solve for x
    x = 87,530,716,502.75/433,953.38
  6. Step 6: Final answer
    x = 201,705.35

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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.