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Finding the Fourth Proportional to 265,600.80, 398,618.80 and 263,527.20

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Solution

The fourth proportional to 265,600.80, 398,618.80 and 263,527.20 is: 395,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,600.80 : 398,618.80 = 263,527.20 : x
  2. Step 2: Convert to fraction form
    265,600.80/398,618.80 = 263,527.20/x
  3. Step 3: Cross multiply
    265,600.80x = 398,618.80 × 263,527.20
  4. Step 4: Simplify right side
    265,600.80x = 105,046,896,231.36
  5. Step 5: Solve for x
    x = 105,046,896,231.36/265,600.80
  6. Step 6: Final answer
    x = 395,506.70

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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.