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Finding the Fourth Proportional to 288,976.03, 398,807.94 and 161,692.63

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Solution

The fourth proportional to 288,976.03, 398,807.94 and 161,692.63 is: 223,147.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,976.03 : 398,807.94 = 161,692.63 : x
  2. Step 2: Convert to fraction form
    288,976.03/398,807.94 = 161,692.63/x
  3. Step 3: Cross multiply
    288,976.03x = 398,807.94 × 161,692.63
  4. Step 4: Simplify right side
    288,976.03x = 64,484,304,683.48
  5. Step 5: Solve for x
    x = 64,484,304,683.48/288,976.03
  6. Step 6: Final answer
    x = 223,147.59

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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.