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Finding the Fourth Proportional to 439,262.90, 659,058.36 and 173,208.89

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Solution

The fourth proportional to 439,262.90, 659,058.36 and 173,208.89 is: 259,878.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,262.90 : 659,058.36 = 173,208.89 : x
  2. Step 2: Convert to fraction form
    439,262.90/659,058.36 = 173,208.89/x
  3. Step 3: Cross multiply
    439,262.90x = 659,058.36 × 173,208.89
  4. Step 4: Simplify right side
    439,262.90x = 114,154,766,980.82
  5. Step 5: Solve for x
    x = 114,154,766,980.82/439,262.90
  6. Step 6: Final answer
    x = 259,878.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.