Home / 1,131,022.56-1,560,812.80-621,728.04

Finding the Fourth Proportional to 1,131,022.56, 1,560,812.80 and 621,728.04

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Solution

The fourth proportional to 1,131,022.56, 1,560,812.80 and 621,728.04 is: 857,985.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,022.56 : 1,560,812.80 = 621,728.04 : x
  2. Step 2: Convert to fraction form
    1,131,022.56/1,560,812.80 = 621,728.04/x
  3. Step 3: Cross multiply
    1,131,022.56x = 1,560,812.80 × 621,728.04
  4. Step 4: Simplify right side
    1,131,022.56x = 970,401,082,950.91
  5. Step 5: Solve for x
    x = 970,401,082,950.91/1,131,022.56
  6. Step 6: Final answer
    x = 857,985.61

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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.