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Finding the Fourth Proportional to 450,782.96, 622,097.20 and 257,222.12

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Solution

The fourth proportional to 450,782.96, 622,097.20 and 257,222.12 is: 354,976.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,782.96 : 622,097.20 = 257,222.12 : x
  2. Step 2: Convert to fraction form
    450,782.96/622,097.20 = 257,222.12/x
  3. Step 3: Cross multiply
    450,782.96x = 622,097.20 × 257,222.12
  4. Step 4: Simplify right side
    450,782.96x = 160,017,160,630.06
  5. Step 5: Solve for x
    x = 160,017,160,630.06/450,782.96
  6. Step 6: Final answer
    x = 354,976.06

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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.