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Finding the Fourth Proportional to 555,083.59, 766,021.62 and 325,644.79

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Solution

The fourth proportional to 555,083.59, 766,021.62 and 325,644.79 is: 449,393.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,083.59 : 766,021.62 = 325,644.79 : x
  2. Step 2: Convert to fraction form
    555,083.59/766,021.62 = 325,644.79/x
  3. Step 3: Cross multiply
    555,083.59x = 766,021.62 × 325,644.79
  4. Step 4: Simplify right side
    555,083.59x = 249,450,950,322.76
  5. Step 5: Solve for x
    x = 249,450,950,322.76/555,083.59
  6. Step 6: Final answer
    x = 449,393.49

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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.