Home / 942,169.86-1,412,719.43-643,012.86

Finding the Fourth Proportional to 942,169.86, 1,412,719.43 and 643,012.86

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Solution

The fourth proportional to 942,169.86, 1,412,719.43 and 643,012.86 is: 964,153.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,169.86 : 1,412,719.43 = 643,012.86 : x
  2. Step 2: Convert to fraction form
    942,169.86/1,412,719.43 = 643,012.86/x
  3. Step 3: Cross multiply
    942,169.86x = 1,412,719.43 × 643,012.86
  4. Step 4: Simplify right side
    942,169.86x = 908,396,757,846.81
  5. Step 5: Solve for x
    x = 908,396,757,846.81/942,169.86
  6. Step 6: Final answer
    x = 964,153.91

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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.