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Finding the Fourth Proportional to 340,418.48, 469,773.42 and 187,453.40

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Solution

The fourth proportional to 340,418.48, 469,773.42 and 187,453.40 is: 258,683.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,418.48 : 469,773.42 = 187,453.40 : x
  2. Step 2: Convert to fraction form
    340,418.48/469,773.42 = 187,453.40/x
  3. Step 3: Cross multiply
    340,418.48x = 469,773.42 × 187,453.40
  4. Step 4: Simplify right side
    340,418.48x = 88,060,624,808.63
  5. Step 5: Solve for x
    x = 88,060,624,808.63/340,418.48
  6. Step 6: Final answer
    x = 258,683.44

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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.