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Finding the Fourth Proportional to 698,063.67, 963,327.33 and 396,257.67

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Solution

The fourth proportional to 698,063.67, 963,327.33 and 396,257.67 is: 546,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,063.67 : 963,327.33 = 396,257.67 : x
  2. Step 2: Convert to fraction form
    698,063.67/963,327.33 = 396,257.67/x
  3. Step 3: Cross multiply
    698,063.67x = 963,327.33 × 396,257.67
  4. Step 4: Simplify right side
    698,063.67x = 381,725,843,233.12
  5. Step 5: Solve for x
    x = 381,725,843,233.12/698,063.67
  6. Step 6: Final answer
    x = 546,835.28

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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.