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Finding the Fourth Proportional to 571,796.94, 789,080.28 and 317,148.12

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Solution

The fourth proportional to 571,796.94, 789,080.28 and 317,148.12 is: 437,664.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,796.94 : 789,080.28 = 317,148.12 : x
  2. Step 2: Convert to fraction form
    571,796.94/789,080.28 = 317,148.12/x
  3. Step 3: Cross multiply
    571,796.94x = 789,080.28 × 317,148.12
  4. Step 4: Simplify right side
    571,796.94x = 250,255,327,331.07
  5. Step 5: Solve for x
    x = 250,255,327,331.07/571,796.94
  6. Step 6: Final answer
    x = 437,664.68

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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.