Home / 347,610.49-522,289.22-221,307.12

Finding the Fourth Proportional to 347,610.49, 522,289.22 and 221,307.12

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Solution

The fourth proportional to 347,610.49, 522,289.22 and 221,307.12 is: 332,516.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,610.49 : 522,289.22 = 221,307.12 : x
  2. Step 2: Convert to fraction form
    347,610.49/522,289.22 = 221,307.12/x
  3. Step 3: Cross multiply
    347,610.49x = 522,289.22 × 221,307.12
  4. Step 4: Simplify right side
    347,610.49x = 115,586,321,978.71
  5. Step 5: Solve for x
    x = 115,586,321,978.71/347,610.49
  6. Step 6: Final answer
    x = 332,516.79

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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.