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Finding the Fourth Proportional to 340,393.34, 469,746.30 and 187,445.75

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Solution

The fourth proportional to 340,393.34, 469,746.30 and 187,445.75 is: 258,677.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,393.34 : 469,746.30 = 187,445.75 : x
  2. Step 2: Convert to fraction form
    340,393.34/469,746.30 = 187,445.75/x
  3. Step 3: Cross multiply
    340,393.34x = 469,746.30 × 187,445.75
  4. Step 4: Simplify right side
    340,393.34x = 88,051,948,249.33
  5. Step 5: Solve for x
    x = 88,051,948,249.33/340,393.34
  6. Step 6: Final answer
    x = 258,677.06

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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.