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Finding the Fourth Proportional to 822,989.90, 1,233,363.00 and 396,494.70

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Solution

The fourth proportional to 822,989.90, 1,233,363.00 and 396,494.70 is: 594,201.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,989.90 : 1,233,363.00 = 396,494.70 : x
  2. Step 2: Convert to fraction form
    822,989.90/1,233,363.00 = 396,494.70/x
  3. Step 3: Cross multiply
    822,989.90x = 1,233,363.00 × 396,494.70
  4. Step 4: Simplify right side
    822,989.90x = 489,021,889,537.84
  5. Step 5: Solve for x
    x = 489,021,889,537.84/822,989.90
  6. Step 6: Final answer
    x = 594,201.57

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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.