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Finding the Fourth Proportional to 340,961.80, 511,442.70 and 175,073.80

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Solution

The fourth proportional to 340,961.80, 511,442.70 and 175,073.80 is: 262,610.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,961.80 : 511,442.70 = 175,073.80 : x
  2. Step 2: Convert to fraction form
    340,961.80/511,442.70 = 175,073.80/x
  3. Step 3: Cross multiply
    340,961.80x = 511,442.70 × 175,073.80
  4. Step 4: Simplify right side
    340,961.80x = 89,540,216,971.26
  5. Step 5: Solve for x
    x = 89,540,216,971.26/340,961.80
  6. Step 6: Final answer
    x = 262,610.70

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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.