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Finding the Fourth Proportional to 555,839.19, 767,060.74 and 301,190.83

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Solution

The fourth proportional to 555,839.19, 767,060.74 and 301,190.83 is: 415,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,839.19 : 767,060.74 = 301,190.83 : x
  2. Step 2: Convert to fraction form
    555,839.19/767,060.74 = 301,190.83/x
  3. Step 3: Cross multiply
    555,839.19x = 767,060.74 × 301,190.83
  4. Step 4: Simplify right side
    555,839.19x = 231,031,658,646.87
  5. Step 5: Solve for x
    x = 231,031,658,646.87/555,839.19
  6. Step 6: Final answer
    x = 415,644.78

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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.