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Finding the Fourth Proportional to 290,758.38, 435,692.42 and 195,636.23

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Solution

The fourth proportional to 290,758.38, 435,692.42 and 195,636.23 is: 293,154.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,758.38 : 435,692.42 = 195,636.23 : x
  2. Step 2: Convert to fraction form
    290,758.38/435,692.42 = 195,636.23/x
  3. Step 3: Cross multiply
    290,758.38x = 435,692.42 × 195,636.23
  4. Step 4: Simplify right side
    290,758.38x = 85,237,222,488.38
  5. Step 5: Solve for x
    x = 85,237,222,488.38/290,758.38
  6. Step 6: Final answer
    x = 293,154.83

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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.