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Finding the Fourth Proportional to 322,471.40, 444,840.54 and 191,574.32

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Solution

The fourth proportional to 322,471.40, 444,840.54 and 191,574.32 is: 264,271.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,471.40 : 444,840.54 = 191,574.32 : x
  2. Step 2: Convert to fraction form
    322,471.40/444,840.54 = 191,574.32/x
  3. Step 3: Cross multiply
    322,471.40x = 444,840.54 × 191,574.32
  4. Step 4: Simplify right side
    322,471.40x = 85,220,023,958.93
  5. Step 5: Solve for x
    x = 85,220,023,958.93/322,471.40
  6. Step 6: Final answer
    x = 264,271.57

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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.