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Finding the Fourth Proportional to 555,827.87, 767,021.91 and 301,173.59

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Solution

The fourth proportional to 555,827.87, 767,021.91 and 301,173.59 is: 415,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,827.87 : 767,021.91 = 301,173.59 : x
  2. Step 2: Convert to fraction form
    555,827.87/767,021.91 = 301,173.59/x
  3. Step 3: Cross multiply
    555,827.87x = 767,021.91 × 301,173.59
  4. Step 4: Simplify right side
    555,827.87x = 231,006,743,031.51
  5. Step 5: Solve for x
    x = 231,006,743,031.51/555,827.87
  6. Step 6: Final answer
    x = 415,608.42

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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.