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Finding the Fourth Proportional to 6,576,994.80, 9,865,492.20 and 4,191,415.20

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Solution

The fourth proportional to 6,576,994.80, 9,865,492.20 and 4,191,415.20 is: 6,287,122.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,576,994.80 : 9,865,492.20 = 4,191,415.20 : x
  2. Step 2: Convert to fraction form
    6,576,994.80/9,865,492.20 = 4,191,415.20/x
  3. Step 3: Cross multiply
    6,576,994.80x = 9,865,492.20 × 4,191,415.20
  4. Step 4: Simplify right side
    6,576,994.80x = 41,350,373,962,561.44
  5. Step 5: Solve for x
    x = 41,350,373,962,561.44/6,576,994.80
  6. Step 6: Final answer
    x = 6,287,122.80

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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.