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Finding the Fourth Proportional to 265,392.72, 397,824.12 and 147,116.88

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Solution

The fourth proportional to 265,392.72, 397,824.12 and 147,116.88 is: 220,528.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,392.72 : 397,824.12 = 147,116.88 : x
  2. Step 2: Convert to fraction form
    265,392.72/397,824.12 = 147,116.88/x
  3. Step 3: Cross multiply
    265,392.72x = 397,824.12 × 147,116.88
  4. Step 4: Simplify right side
    265,392.72x = 58,526,643,323.15
  5. Step 5: Solve for x
    x = 58,526,643,323.15/265,392.72
  6. Step 6: Final answer
    x = 220,528.44

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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.