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Finding the Fourth Proportional to 893,460.80, 1,339,730.40 and 332,206.40

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Solution

The fourth proportional to 893,460.80, 1,339,730.40 and 332,206.40 is: 498,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,460.80 : 1,339,730.40 = 332,206.40 : x
  2. Step 2: Convert to fraction form
    893,460.80/1,339,730.40 = 332,206.40/x
  3. Step 3: Cross multiply
    893,460.80x = 1,339,730.40 × 332,206.40
  4. Step 4: Simplify right side
    893,460.80x = 445,067,013,154.56
  5. Step 5: Solve for x
    x = 445,067,013,154.56/893,460.80
  6. Step 6: Final answer
    x = 498,138.27

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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.