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Finding the Fourth Proportional to 341,720.10, 512,580.15 and 117,005.85

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Solution

The fourth proportional to 341,720.10, 512,580.15 and 117,005.85 is: 175,508.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,720.10 : 512,580.15 = 117,005.85 : x
  2. Step 2: Convert to fraction form
    341,720.10/512,580.15 = 117,005.85/x
  3. Step 3: Cross multiply
    341,720.10x = 512,580.15 × 117,005.85
  4. Step 4: Simplify right side
    341,720.10x = 59,974,876,143.88
  5. Step 5: Solve for x
    x = 59,974,876,143.88/341,720.10
  6. Step 6: Final answer
    x = 175,508.78

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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.