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Finding the Fourth Proportional to 3,766,223.60, 5,649,076.20 and 1,207,401.20

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Solution

The fourth proportional to 3,766,223.60, 5,649,076.20 and 1,207,401.20 is: 1,811,018.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,766,223.60 : 5,649,076.20 = 1,207,401.20 : x
  2. Step 2: Convert to fraction form
    3,766,223.60/5,649,076.20 = 1,207,401.20/x
  3. Step 3: Cross multiply
    3,766,223.60x = 5,649,076.20 × 1,207,401.20
  4. Step 4: Simplify right side
    3,766,223.60x = 6,820,701,382,771.44
  5. Step 5: Solve for x
    x = 6,820,701,382,771.44/3,766,223.60
  6. Step 6: Final answer
    x = 1,811,018.70

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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.