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Finding the Fourth Proportional to 341,372.10, 512,058.15 and 221,621.70

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Solution

The fourth proportional to 341,372.10, 512,058.15 and 221,621.70 is: 332,432.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,372.10 : 512,058.15 = 221,621.70 : x
  2. Step 2: Convert to fraction form
    341,372.10/512,058.15 = 221,621.70/x
  3. Step 3: Cross multiply
    341,372.10x = 512,058.15 × 221,621.70
  4. Step 4: Simplify right side
    341,372.10x = 113,483,197,701.86
  5. Step 5: Solve for x
    x = 113,483,197,701.86/341,372.10
  6. Step 6: Final answer
    x = 332,432.55

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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.