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Finding the Fourth Proportional to 478,047.22, 659,692.34 and 263,188.88

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Solution

The fourth proportional to 478,047.22, 659,692.34 and 263,188.88 is: 363,193.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,047.22 : 659,692.34 = 263,188.88 : x
  2. Step 2: Convert to fraction form
    478,047.22/659,692.34 = 263,188.88/x
  3. Step 3: Cross multiply
    478,047.22x = 659,692.34 × 263,188.88
  4. Step 4: Simplify right side
    478,047.22x = 173,623,688,109.18
  5. Step 5: Solve for x
    x = 173,623,688,109.18/478,047.22
  6. Step 6: Final answer
    x = 363,193.59

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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.