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Finding the Fourth Proportional to 426,289.70, 588,309.21 and 244,990.78

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Solution

The fourth proportional to 426,289.70, 588,309.21 and 244,990.78 is: 338,104.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,289.70 : 588,309.21 = 244,990.78 : x
  2. Step 2: Convert to fraction form
    426,289.70/588,309.21 = 244,990.78/x
  3. Step 3: Cross multiply
    426,289.70x = 588,309.21 × 244,990.78
  4. Step 4: Simplify right side
    426,289.70x = 144,130,330,768.31
  5. Step 5: Solve for x
    x = 144,130,330,768.31/426,289.70
  6. Step 6: Final answer
    x = 338,104.18

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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.