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Finding the Fourth Proportional to 622,790.38, 859,453.36 and 350,861.52

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Solution

The fourth proportional to 622,790.38, 859,453.36 and 350,861.52 is: 484,190.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,790.38 : 859,453.36 = 350,861.52 : x
  2. Step 2: Convert to fraction form
    622,790.38/859,453.36 = 350,861.52/x
  3. Step 3: Cross multiply
    622,790.38x = 859,453.36 × 350,861.52
  4. Step 4: Simplify right side
    622,790.38x = 301,549,112,258.71
  5. Step 5: Solve for x
    x = 301,549,112,258.71/622,790.38
  6. Step 6: Final answer
    x = 484,190.38

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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.