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Finding the Fourth Proportional to 465,311.04, 698,313.92 and 345,644.28

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Solution

The fourth proportional to 465,311.04, 698,313.92 and 345,644.28 is: 518,724.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,311.04 : 698,313.92 = 345,644.28 : x
  2. Step 2: Convert to fraction form
    465,311.04/698,313.92 = 345,644.28/x
  3. Step 3: Cross multiply
    465,311.04x = 698,313.92 × 345,644.28
  4. Step 4: Simplify right side
    465,311.04x = 241,368,212,092.38
  5. Step 5: Solve for x
    x = 241,368,212,092.38/465,311.04
  6. Step 6: Final answer
    x = 518,724.45

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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.