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Finding the Fourth Proportional to 340,291.56, 469,598.52 and 187,326.48

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Solution

The fourth proportional to 340,291.56, 469,598.52 and 187,326.48 is: 258,508.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,291.56 : 469,598.52 = 187,326.48 : x
  2. Step 2: Convert to fraction form
    340,291.56/469,598.52 = 187,326.48/x
  3. Step 3: Cross multiply
    340,291.56x = 469,598.52 × 187,326.48
  4. Step 4: Simplify right side
    340,291.56x = 87,968,237,764.81
  5. Step 5: Solve for x
    x = 87,968,237,764.81/340,291.56
  6. Step 6: Final answer
    x = 258,508.43

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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.