Home / 693,603.20-1,040,404.80-646,947.20

Finding the Fourth Proportional to 693,603.20, 1,040,404.80 and 646,947.20

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Solution

The fourth proportional to 693,603.20, 1,040,404.80 and 646,947.20 is: 970,420.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,603.20 : 1,040,404.80 = 646,947.20 : x
  2. Step 2: Convert to fraction form
    693,603.20/1,040,404.80 = 646,947.20/x
  3. Step 3: Cross multiply
    693,603.20x = 1,040,404.80 × 646,947.20
  4. Step 4: Simplify right side
    693,603.20x = 673,086,972,226.56
  5. Step 5: Solve for x
    x = 673,086,972,226.56/693,603.20
  6. Step 6: Final answer
    x = 970,420.80

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1.5x scale

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.