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Finding the Fourth Proportional to 698,190.96, 963,504.43 and 396,384.96

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Solution

The fourth proportional to 698,190.96, 963,504.43 and 396,384.96 is: 547,011.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,190.96 : 963,504.43 = 396,384.96 : x
  2. Step 2: Convert to fraction form
    698,190.96/963,504.43 = 396,384.96/x
  3. Step 3: Cross multiply
    698,190.96x = 963,504.43 × 396,384.96
  4. Step 4: Simplify right side
    698,190.96x = 381,918,663,954.41
  5. Step 5: Solve for x
    x = 381,918,663,954.41/698,190.96
  6. Step 6: Final answer
    x = 547,011.76

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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.