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Finding the Fourth Proportional to 345,219.91, 476,393.82 and 192,258.06

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Solution

The fourth proportional to 345,219.91, 476,393.82 and 192,258.06 is: 265,310.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,219.91 : 476,393.82 = 192,258.06 : x
  2. Step 2: Convert to fraction form
    345,219.91/476,393.82 = 192,258.06/x
  3. Step 3: Cross multiply
    345,219.91x = 476,393.82 × 192,258.06
  4. Step 4: Simplify right side
    345,219.91x = 91,590,549,121.74
  5. Step 5: Solve for x
    x = 91,590,549,121.74/345,219.91
  6. Step 6: Final answer
    x = 265,310.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.