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Finding the Fourth Proportional to 259,266.60, 357,953.04 and 211,633.20

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Solution

The fourth proportional to 259,266.60, 357,953.04 and 211,633.20 is: 292,188.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,266.60 : 357,953.04 = 211,633.20 : x
  2. Step 2: Convert to fraction form
    259,266.60/357,953.04 = 211,633.20/x
  3. Step 3: Cross multiply
    259,266.60x = 357,953.04 × 211,633.20
  4. Step 4: Simplify right side
    259,266.60x = 75,754,747,304.93
  5. Step 5: Solve for x
    x = 75,754,747,304.93/259,266.60
  6. Step 6: Final answer
    x = 292,188.61

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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.