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Finding the Fourth Proportional to 367,935.30, 551,465.55 and 330,318.90

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Solution

The fourth proportional to 367,935.30, 551,465.55 and 330,318.90 is: 495,085.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,935.30 : 551,465.55 = 330,318.90 : x
  2. Step 2: Convert to fraction form
    367,935.30/551,465.55 = 330,318.90/x
  3. Step 3: Cross multiply
    367,935.30x = 551,465.55 × 330,318.90
  4. Step 4: Simplify right side
    367,935.30x = 182,159,493,863.90
  5. Step 5: Solve for x
    x = 182,159,493,863.90/367,935.30
  6. Step 6: Final answer
    x = 495,085.67

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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.