Home / 783,786.29-1,081,667.87-439,731.20

Finding the Fourth Proportional to 783,786.29, 1,081,667.87 and 439,731.20

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Solution

The fourth proportional to 783,786.29, 1,081,667.87 and 439,731.20 is: 606,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,786.29 : 1,081,667.87 = 439,731.20 : x
  2. Step 2: Convert to fraction form
    783,786.29/1,081,667.87 = 439,731.20/x
  3. Step 3: Cross multiply
    783,786.29x = 1,081,667.87 × 439,731.20
  4. Step 4: Simplify right side
    783,786.29x = 475,643,102,869.55
  5. Step 5: Solve for x
    x = 475,643,102,869.55/783,786.29
  6. Step 6: Final answer
    x = 606,853.06

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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.