Home / 693,150.40-1,040,186.40-393,630.40

Finding the Fourth Proportional to 693,150.40, 1,040,186.40 and 393,630.40

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Solution

The fourth proportional to 693,150.40, 1,040,186.40 and 393,630.40 is: 590,707.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,150.40 : 1,040,186.40 = 393,630.40 : x
  2. Step 2: Convert to fraction form
    693,150.40/1,040,186.40 = 393,630.40/x
  3. Step 3: Cross multiply
    693,150.40x = 1,040,186.40 × 393,630.40
  4. Step 4: Simplify right side
    693,150.40x = 409,448,988,706.56
  5. Step 5: Solve for x
    x = 409,448,988,706.56/693,150.40
  6. Step 6: Final answer
    x = 590,707.28

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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.