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Finding the Fourth Proportional to 367,925.80, 551,451.30 and 330,309.40

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Solution

The fourth proportional to 367,925.80, 551,451.30 and 330,309.40 is: 495,071.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,925.80 : 551,451.30 = 330,309.40 : x
  2. Step 2: Convert to fraction form
    367,925.80/551,451.30 = 330,309.40/x
  3. Step 3: Cross multiply
    367,925.80x = 551,451.30 × 330,309.40
  4. Step 4: Simplify right side
    367,925.80x = 182,149,548,032.22
  5. Step 5: Solve for x
    x = 182,149,548,032.22/367,925.80
  6. Step 6: Final answer
    x = 495,071.42

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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.