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Finding the Fourth Proportional to 341,502.39, 512,278.35 and 131,140.35

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Solution

The fourth proportional to 341,502.39, 512,278.35 and 131,140.35 is: 196,720.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,502.39 : 512,278.35 = 131,140.35 : x
  2. Step 2: Convert to fraction form
    341,502.39/512,278.35 = 131,140.35/x
  3. Step 3: Cross multiply
    341,502.39x = 512,278.35 × 131,140.35
  4. Step 4: Simplify right side
    341,502.39x = 67,180,362,116.42
  5. Step 5: Solve for x
    x = 67,180,362,116.42/341,502.39
  6. Step 6: Final answer
    x = 196,720.04

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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.