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Finding the Fourth Proportional to 422,054.08, 633,080.96 and 141,570.40

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Solution

The fourth proportional to 422,054.08, 633,080.96 and 141,570.40 is: 212,355.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,054.08 : 633,080.96 = 141,570.40 : x
  2. Step 2: Convert to fraction form
    422,054.08/633,080.96 = 141,570.40/x
  3. Step 3: Cross multiply
    422,054.08x = 633,080.96 × 141,570.40
  4. Step 4: Simplify right side
    422,054.08x = 89,625,524,739.58
  5. Step 5: Solve for x
    x = 89,625,524,739.58/422,054.08
  6. Step 6: Final answer
    x = 212,355.55

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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.