Home / 912,570.50-1,369,048.55-343,939.56

Finding the Fourth Proportional to 912,570.50, 1,369,048.55 and 343,939.56

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Solution

The fourth proportional to 912,570.50, 1,369,048.55 and 343,939.56 is: 515,982.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,570.50 : 1,369,048.55 = 343,939.56 : x
  2. Step 2: Convert to fraction form
    912,570.50/1,369,048.55 = 343,939.56/x
  3. Step 3: Cross multiply
    912,570.50x = 1,369,048.55 × 343,939.56
  4. Step 4: Simplify right side
    912,570.50x = 470,869,954,185.94
  5. Step 5: Solve for x
    x = 470,869,954,185.94/912,570.50
  6. Step 6: Final answer
    x = 515,982.01

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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.