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Finding the Fourth Proportional to 836,698.30, 1,253,665.05 and 712,282.30

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Solution

The fourth proportional to 836,698.30, 1,253,665.05 and 712,282.30 is: 1,067,246.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    836,698.30 : 1,253,665.05 = 712,282.30 : x
  2. Step 2: Convert to fraction form
    836,698.30/1,253,665.05 = 712,282.30/x
  3. Step 3: Cross multiply
    836,698.30x = 1,253,665.05 × 712,282.30
  4. Step 4: Simplify right side
    836,698.30x = 892,963,425,243.62
  5. Step 5: Solve for x
    x = 892,963,425,243.62/836,698.30
  6. Step 6: Final answer
    x = 1,067,246.61

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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.