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Finding the Fourth Proportional to 619,373.80, 929,060.70 and 198,692.20

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Solution

The fourth proportional to 619,373.80, 929,060.70 and 198,692.20 is: 298,038.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,373.80 : 929,060.70 = 198,692.20 : x
  2. Step 2: Convert to fraction form
    619,373.80/929,060.70 = 198,692.20/x
  3. Step 3: Cross multiply
    619,373.80x = 929,060.70 × 198,692.20
  4. Step 4: Simplify right side
    619,373.80x = 184,597,114,416.54
  5. Step 5: Solve for x
    x = 184,597,114,416.54/619,373.80
  6. Step 6: Final answer
    x = 298,038.30

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Similar ratio
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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.