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Finding the Fourth Proportional to 724,369.04, 999,692.56 and 422,660.24

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Solution

The fourth proportional to 724,369.04, 999,692.56 and 422,660.24 is: 583,308.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,369.04 : 999,692.56 = 422,660.24 : x
  2. Step 2: Convert to fraction form
    724,369.04/999,692.56 = 422,660.24/x
  3. Step 3: Cross multiply
    724,369.04x = 999,692.56 × 422,660.24
  4. Step 4: Simplify right side
    724,369.04x = 422,530,297,335.81
  5. Step 5: Solve for x
    x = 422,530,297,335.81/724,369.04
  6. Step 6: Final answer
    x = 583,308.06

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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.