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Finding the Fourth Proportional to 341,786.10, 512,679.15 and 152,246.10

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Solution

The fourth proportional to 341,786.10, 512,679.15 and 152,246.10 is: 228,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,786.10 : 512,679.15 = 152,246.10 : x
  2. Step 2: Convert to fraction form
    341,786.10/512,679.15 = 152,246.10/x
  3. Step 3: Cross multiply
    341,786.10x = 512,679.15 × 152,246.10
  4. Step 4: Simplify right side
    341,786.10x = 78,053,401,138.82
  5. Step 5: Solve for x
    x = 78,053,401,138.82/341,786.10
  6. Step 6: Final answer
    x = 228,369.15

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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.