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Finding the Fourth Proportional to 570,420.81, 787,224.44 and 325,410.96

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Solution

The fourth proportional to 570,420.81, 787,224.44 and 325,410.96 is: 449,092.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,420.81 : 787,224.44 = 325,410.96 : x
  2. Step 2: Convert to fraction form
    570,420.81/787,224.44 = 325,410.96/x
  3. Step 3: Cross multiply
    570,420.81x = 787,224.44 × 325,410.96
  4. Step 4: Simplify right side
    570,420.81x = 256,171,460,755.86
  5. Step 5: Solve for x
    x = 256,171,460,755.86/570,420.81
  6. Step 6: Final answer
    x = 449,092.07

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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.