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Finding the Fourth Proportional to 693,793.98, 957,442.29 and 407,318.85

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Solution

The fourth proportional to 693,793.98, 957,442.29 and 407,318.85 is: 562,103.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,793.98 : 957,442.29 = 407,318.85 : x
  2. Step 2: Convert to fraction form
    693,793.98/957,442.29 = 407,318.85/x
  3. Step 3: Cross multiply
    693,793.98x = 957,442.29 × 407,318.85
  4. Step 4: Simplify right side
    693,793.98x = 389,984,292,504.17
  5. Step 5: Solve for x
    x = 389,984,292,504.17/693,793.98
  6. Step 6: Final answer
    x = 562,103.89

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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.