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Finding the Fourth Proportional to 265,401,679.80, 398,102,519.70 and 150,610,423.80

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Solution

The fourth proportional to 265,401,679.80, 398,102,519.70 and 150,610,423.80 is: 225,915,635.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,401,679.80 : 398,102,519.70 = 150,610,423.80 : x
  2. Step 2: Convert to fraction form
    265,401,679.80/398,102,519.70 = 150,610,423.80/x
  3. Step 3: Cross multiply
    265,401,679.80x = 398,102,519.70 × 150,610,423.80
  4. Step 4: Simplify right side
    265,401,679.80x = 59,958,389,207,864,848
  5. Step 5: Solve for x
    x = 59,958,389,207,864,848/265,401,679.80
  6. Step 6: Final answer
    x = 225,915,635.70

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1.5x scale

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.