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Finding the Fourth Proportional to 883,944.40, 1,326,108.60 and 322,978

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Solution

The fourth proportional to 883,944.40, 1,326,108.60 and 322,978 is: 484,537.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    883,944.40 : 1,326,108.60 = 322,978 : x
  2. Step 2: Convert to fraction form
    883,944.40/1,326,108.60 = 322,978/x
  3. Step 3: Cross multiply
    883,944.40x = 1,326,108.60 × 322,978
  4. Step 4: Simplify right side
    883,944.40x = 428,303,903,410.80
  5. Step 5: Solve for x
    x = 428,303,903,410.80/883,944.40
  6. Step 6: Final answer
    x = 484,537.15

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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.