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Finding the Fourth Proportional to 322,504.80, 483,611.40 and 144,920.40

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Solution

The fourth proportional to 322,504.80, 483,611.40 and 144,920.40 is: 217,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,504.80 : 483,611.40 = 144,920.40 : x
  2. Step 2: Convert to fraction form
    322,504.80/483,611.40 = 144,920.40/x
  3. Step 3: Cross multiply
    322,504.80x = 483,611.40 × 144,920.40
  4. Step 4: Simplify right side
    322,504.80x = 70,085,157,532.56
  5. Step 5: Solve for x
    x = 70,085,157,532.56/322,504.80
  6. Step 6: Final answer
    x = 217,315.08

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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.