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Finding the Fourth Proportional to 349,540.80, 523,274.40 and 231,345.60

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Solution

The fourth proportional to 349,540.80, 523,274.40 and 231,345.60 is: 346,332.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,540.80 : 523,274.40 = 231,345.60 : x
  2. Step 2: Convert to fraction form
    349,540.80/523,274.40 = 231,345.60/x
  3. Step 3: Cross multiply
    349,540.80x = 523,274.40 × 231,345.60
  4. Step 4: Simplify right side
    349,540.80x = 121,057,230,032.64
  5. Step 5: Solve for x
    x = 121,057,230,032.64/349,540.80
  6. Step 6: Final answer
    x = 346,332.19

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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.