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Finding the Fourth Proportional to 791,855, 1,187,980.56 and 230,889.52

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Solution

The fourth proportional to 791,855, 1,187,980.56 and 230,889.52 is: 346,392.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,855 : 1,187,980.56 = 230,889.52 : x
  2. Step 2: Convert to fraction form
    791,855/1,187,980.56 = 230,889.52/x
  3. Step 3: Cross multiply
    791,855x = 1,187,980.56 × 230,889.52
  4. Step 4: Simplify right side
    791,855x = 274,292,261,267.73
  5. Step 5: Solve for x
    x = 274,292,261,267.73/791,855
  6. Step 6: Final answer
    x = 346,392.03

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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.