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Finding the Fourth Proportional to 594,660.96, 821,313.23 and 391,619.48

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Solution

The fourth proportional to 594,660.96, 821,313.23 and 391,619.48 is: 540,883.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,660.96 : 821,313.23 = 391,619.48 : x
  2. Step 2: Convert to fraction form
    594,660.96/821,313.23 = 391,619.48/x
  3. Step 3: Cross multiply
    594,660.96x = 821,313.23 × 391,619.48
  4. Step 4: Simplify right side
    594,660.96x = 321,642,253,985.06
  5. Step 5: Solve for x
    x = 321,642,253,985.06/594,660.96
  6. Step 6: Final answer
    x = 540,883.42

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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.