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Finding the Fourth Proportional to 340,884.91, 511,327.36 and 130,522.84

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Solution

The fourth proportional to 340,884.91, 511,327.36 and 130,522.84 is: 195,784.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,884.91 : 511,327.36 = 130,522.84 : x
  2. Step 2: Convert to fraction form
    340,884.91/511,327.36 = 130,522.84/x
  3. Step 3: Cross multiply
    340,884.91x = 511,327.36 × 130,522.84
  4. Step 4: Simplify right side
    340,884.91x = 66,739,899,196.90
  5. Step 5: Solve for x
    x = 66,739,899,196.90/340,884.91
  6. Step 6: Final answer
    x = 195,784.26

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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.