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Finding the Fourth Proportional to 594,666.56, 821,321.02 and 391,625.03

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Solution

The fourth proportional to 594,666.56, 821,321.02 and 391,625.03 is: 540,891.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    594,666.56 : 821,321.02 = 391,625.03 : x
  2. Step 2: Convert to fraction form
    594,666.56/821,321.02 = 391,625.03/x
  3. Step 3: Cross multiply
    594,666.56x = 821,321.02 × 391,625.03
  4. Step 4: Simplify right side
    594,666.56x = 321,649,864,817.14
  5. Step 5: Solve for x
    x = 321,649,864,817.14/594,666.56
  6. Step 6: Final answer
    x = 540,891.12

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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.