Home / 383,002.75-528,560.20-213,236.88

Finding the Fourth Proportional to 383,002.75, 528,560.20 and 213,236.88

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Solution

The fourth proportional to 383,002.75, 528,560.20 and 213,236.88 is: 294,276.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,002.75 : 528,560.20 = 213,236.88 : x
  2. Step 2: Convert to fraction form
    383,002.75/528,560.20 = 213,236.88/x
  3. Step 3: Cross multiply
    383,002.75x = 528,560.20 × 213,236.88
  4. Step 4: Simplify right side
    383,002.75x = 112,708,527,940.18
  5. Step 5: Solve for x
    x = 112,708,527,940.18/383,002.75
  6. Step 6: Final answer
    x = 294,276.03

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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.