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Finding the Fourth Proportional to 404,692.61, 558,436.01 and 223,392.87

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Solution

The fourth proportional to 404,692.61, 558,436.01 and 223,392.87 is: 308,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,692.61 : 558,436.01 = 223,392.87 : x
  2. Step 2: Convert to fraction form
    404,692.61/558,436.01 = 223,392.87/x
  3. Step 3: Cross multiply
    404,692.61x = 558,436.01 × 223,392.87
  4. Step 4: Simplify right side
    404,692.61x = 124,750,621,868.28
  5. Step 5: Solve for x
    x = 124,750,621,868.28/404,692.61
  6. Step 6: Final answer
    x = 308,260.20

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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.