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Finding the Fourth Proportional to 995,796.60, 1,493,692.60 and 426,808.76

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Solution

The fourth proportional to 995,796.60, 1,493,692.60 and 426,808.76 is: 640,212.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,796.60 : 1,493,692.60 = 426,808.76 : x
  2. Step 2: Convert to fraction form
    995,796.60/1,493,692.60 = 426,808.76/x
  3. Step 3: Cross multiply
    995,796.60x = 1,493,692.60 × 426,808.76
  4. Step 4: Simplify right side
    995,796.60x = 637,521,086,427.18
  5. Step 5: Solve for x
    x = 637,521,086,427.18/995,796.60
  6. Step 6: Final answer
    x = 640,212.15

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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.