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Finding the Fourth Proportional to 558,341.10, 770,506.43 and 303,692.49

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Solution

The fourth proportional to 558,341.10, 770,506.43 and 303,692.49 is: 419,093.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,341.10 : 770,506.43 = 303,692.49 : x
  2. Step 2: Convert to fraction form
    558,341.10/770,506.43 = 303,692.49/x
  3. Step 3: Cross multiply
    558,341.10x = 770,506.43 × 303,692.49
  4. Step 4: Simplify right side
    558,341.10x = 233,997,014,769.25
  5. Step 5: Solve for x
    x = 233,997,014,769.25/558,341.10
  6. Step 6: Final answer
    x = 419,093.30

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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.