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Finding the Fourth Proportional to 5,365,086.80, 8,044,865.40 and 1,997,560.40

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Solution

The fourth proportional to 5,365,086.80, 8,044,865.40 and 1,997,560.40 is: 2,995,311.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,365,086.80 : 8,044,865.40 = 1,997,560.40 : x
  2. Step 2: Convert to fraction form
    5,365,086.80/8,044,865.40 = 1,997,560.40/x
  3. Step 3: Cross multiply
    5,365,086.80x = 8,044,865.40 × 1,997,560.40
  4. Step 4: Simplify right side
    5,365,086.80x = 16,070,104,546,370.16
  5. Step 5: Solve for x
    x = 16,070,104,546,370.16/5,365,086.80
  6. Step 6: Final answer
    x = 2,995,311.19

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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.