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Finding the Fourth Proportional to 253,692.40, 380,538.60 and 169,711.60

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Solution

The fourth proportional to 253,692.40, 380,538.60 and 169,711.60 is: 254,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,692.40 : 380,538.60 = 169,711.60 : x
  2. Step 2: Convert to fraction form
    253,692.40/380,538.60 = 169,711.60/x
  3. Step 3: Cross multiply
    253,692.40x = 380,538.60 × 169,711.60
  4. Step 4: Simplify right side
    253,692.40x = 64,581,814,667.76
  5. Step 5: Solve for x
    x = 64,581,814,667.76/253,692.40
  6. Step 6: Final answer
    x = 254,567.40

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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.