Home / 526,900.71-727,140.59-322,912.23

Finding the Fourth Proportional to 526,900.71, 727,140.59 and 322,912.23

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Solution

The fourth proportional to 526,900.71, 727,140.59 and 322,912.23 is: 445,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,900.71 : 727,140.59 = 322,912.23 : x
  2. Step 2: Convert to fraction form
    526,900.71/727,140.59 = 322,912.23/x
  3. Step 3: Cross multiply
    526,900.71x = 727,140.59 × 322,912.23
  4. Step 4: Simplify right side
    526,900.71x = 234,802,587,825.86
  5. Step 5: Solve for x
    x = 234,802,587,825.86/526,900.71
  6. Step 6: Final answer
    x = 445,629.67

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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.