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Finding the Fourth Proportional to 421,759.11, 582,026.94 and 230,772.45

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Solution

The fourth proportional to 421,759.11, 582,026.94 and 230,772.45 is: 318,465.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,759.11 : 582,026.94 = 230,772.45 : x
  2. Step 2: Convert to fraction form
    421,759.11/582,026.94 = 230,772.45/x
  3. Step 3: Cross multiply
    421,759.11x = 582,026.94 × 230,772.45
  4. Step 4: Simplify right side
    421,759.11x = 134,315,782,909.80
  5. Step 5: Solve for x
    x = 134,315,782,909.80/421,759.11
  6. Step 6: Final answer
    x = 318,465.64

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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.