Home / 693,147.40-1,040,181.90-393,627.40

Finding the Fourth Proportional to 693,147.40, 1,040,181.90 and 393,627.40

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Solution

The fourth proportional to 693,147.40, 1,040,181.90 and 393,627.40 is: 590,702.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,147.40 : 1,040,181.90 = 393,627.40 : x
  2. Step 2: Convert to fraction form
    693,147.40/1,040,181.90 = 393,627.40/x
  3. Step 3: Cross multiply
    693,147.40x = 1,040,181.90 × 393,627.40
  4. Step 4: Simplify right side
    693,147.40x = 409,444,096,824.06
  5. Step 5: Solve for x
    x = 409,444,096,824.06/693,147.40
  6. Step 6: Final answer
    x = 590,702.78

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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.