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Finding the Fourth Proportional to 561,414.69, 774,733.79 and 354,793.52

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Solution

The fourth proportional to 561,414.69, 774,733.79 and 354,793.52 is: 489,603.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,414.69 : 774,733.79 = 354,793.52 : x
  2. Step 2: Convert to fraction form
    561,414.69/774,733.79 = 354,793.52/x
  3. Step 3: Cross multiply
    561,414.69x = 774,733.79 × 354,793.52
  4. Step 4: Simplify right side
    561,414.69x = 274,870,522,769.40
  5. Step 5: Solve for x
    x = 274,870,522,769.40/561,414.69
  6. Step 6: Final answer
    x = 489,603.37

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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.