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Finding the Fourth Proportional to 656,405.82, 984,783.75 and 235,685.34

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Solution

The fourth proportional to 656,405.82, 984,783.75 and 235,685.34 is: 353,590.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,405.82 : 984,783.75 = 235,685.34 : x
  2. Step 2: Convert to fraction form
    656,405.82/984,783.75 = 235,685.34/x
  3. Step 3: Cross multiply
    656,405.82x = 984,783.75 × 235,685.34
  4. Step 4: Simplify right side
    656,405.82x = 232,099,092,945.23
  5. Step 5: Solve for x
    x = 232,099,092,945.23/656,405.82
  6. Step 6: Final answer
    x = 353,590.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.