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Finding the Fourth Proportional to 698,094.61, 963,370.01 and 396,288.61

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Solution

The fourth proportional to 698,094.61, 963,370.01 and 396,288.61 is: 546,877.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,094.61 : 963,370.01 = 396,288.61 : x
  2. Step 2: Convert to fraction form
    698,094.61/963,370.01 = 396,288.61/x
  3. Step 3: Cross multiply
    698,094.61x = 963,370.01 × 396,288.61
  4. Step 4: Simplify right side
    698,094.61x = 381,772,560,760.88
  5. Step 5: Solve for x
    x = 381,772,560,760.88/698,094.61
  6. Step 6: Final answer
    x = 546,877.97

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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.