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Finding the Fourth Proportional to 411,091.20, 616,912.20 and 144,852.30

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Solution

The fourth proportional to 411,091.20, 616,912.20 and 144,852.30 is: 217,375.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,091.20 : 616,912.20 = 144,852.30 : x
  2. Step 2: Convert to fraction form
    411,091.20/616,912.20 = 144,852.30/x
  3. Step 3: Cross multiply
    411,091.20x = 616,912.20 × 144,852.30
  4. Step 4: Simplify right side
    411,091.20x = 89,361,151,068.06
  5. Step 5: Solve for x
    x = 89,361,151,068.06/411,091.20
  6. Step 6: Final answer
    x = 217,375.49

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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.