Home / 693,941.45-957,586.46-421,971.80

Finding the Fourth Proportional to 693,941.45, 957,586.46 and 421,971.80

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Solution

The fourth proportional to 693,941.45, 957,586.46 and 421,971.80 is: 582,289.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,941.45 : 957,586.46 = 421,971.80 : x
  2. Step 2: Convert to fraction form
    693,941.45/957,586.46 = 421,971.80/x
  3. Step 3: Cross multiply
    693,941.45x = 957,586.46 × 421,971.80
  4. Step 4: Simplify right side
    693,941.45x = 404,074,475,284.04
  5. Step 5: Solve for x
    x = 404,074,475,284.04/693,941.45
  6. Step 6: Final answer
    x = 582,289.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.