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Finding the Fourth Proportional to 545,692.38, 818,532.81 and 213,265.50

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Solution

The fourth proportional to 545,692.38, 818,532.81 and 213,265.50 is: 319,896.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,692.38 : 818,532.81 = 213,265.50 : x
  2. Step 2: Convert to fraction form
    545,692.38/818,532.81 = 213,265.50/x
  3. Step 3: Cross multiply
    545,692.38x = 818,532.81 × 213,265.50
  4. Step 4: Simplify right side
    545,692.38x = 174,564,808,991.06
  5. Step 5: Solve for x
    x = 174,564,808,991.06/545,692.38
  6. Step 6: Final answer
    x = 319,896.00

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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.