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Finding the Fourth Proportional to 658,671.96, 908,968.50 and 356,865.96

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Solution

The fourth proportional to 658,671.96, 908,968.50 and 356,865.96 is: 492,475.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,671.96 : 908,968.50 = 356,865.96 : x
  2. Step 2: Convert to fraction form
    658,671.96/908,968.50 = 356,865.96/x
  3. Step 3: Cross multiply
    658,671.96x = 908,968.50 × 356,865.96
  4. Step 4: Simplify right side
    658,671.96x = 324,379,916,362.26
  5. Step 5: Solve for x
    x = 324,379,916,362.26/658,671.96
  6. Step 6: Final answer
    x = 492,475.67

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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.