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Finding the Fourth Proportional to 471,431.28, 650,562.76 and 256,566.80

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Solution

The fourth proportional to 471,431.28, 650,562.76 and 256,566.80 is: 354,055.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    471,431.28 : 650,562.76 = 256,566.80 : x
  2. Step 2: Convert to fraction form
    471,431.28/650,562.76 = 256,566.80/x
  3. Step 3: Cross multiply
    471,431.28x = 650,562.76 × 256,566.80
  4. Step 4: Simplify right side
    471,431.28x = 166,912,805,532.37
  5. Step 5: Solve for x
    x = 166,912,805,532.37/471,431.28
  6. Step 6: Final answer
    x = 354,055.43

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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.