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Finding the Fourth Proportional to 322,574.40, 444,895.20 and 201,484.80

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Solution

The fourth proportional to 322,574.40, 444,895.20 and 201,484.80 is: 277,888.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,574.40 : 444,895.20 = 201,484.80 : x
  2. Step 2: Convert to fraction form
    322,574.40/444,895.20 = 201,484.80/x
  3. Step 3: Cross multiply
    322,574.40x = 444,895.20 × 201,484.80
  4. Step 4: Simplify right side
    322,574.40x = 89,639,620,392.96
  5. Step 5: Solve for x
    x = 89,639,620,392.96/322,574.40
  6. Step 6: Final answer
    x = 277,888.20

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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.