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Finding the Fourth Proportional to 367,068.80, 550,603.20 and 311,081.60

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Solution

The fourth proportional to 367,068.80, 550,603.20 and 311,081.60 is: 466,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,068.80 : 550,603.20 = 311,081.60 : x
  2. Step 2: Convert to fraction form
    367,068.80/550,603.20 = 311,081.60/x
  3. Step 3: Cross multiply
    367,068.80x = 550,603.20 × 311,081.60
  4. Step 4: Simplify right side
    367,068.80x = 171,282,524,421.12
  5. Step 5: Solve for x
    x = 171,282,524,421.12/367,068.80
  6. Step 6: Final answer
    x = 466,622.40

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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.