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Finding the Fourth Proportional to 5,263,401.70, 7,888,978.95 and 2,423,800.90

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Solution

The fourth proportional to 5,263,401.70, 7,888,978.95 and 2,423,800.90 is: 3,632,881.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,263,401.70 : 7,888,978.95 = 2,423,800.90 : x
  2. Step 2: Convert to fraction form
    5,263,401.70/7,888,978.95 = 2,423,800.90/x
  3. Step 3: Cross multiply
    5,263,401.70x = 7,888,978.95 × 2,423,800.90
  4. Step 4: Simplify right side
    5,263,401.70x = 19,121,314,279,091.05
  5. Step 5: Solve for x
    x = 19,121,314,279,091.05/5,263,401.70
  6. Step 6: Final answer
    x = 3,632,881.43

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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.