Home / 783,589.85-1,081,366.37-439,502.29

Finding the Fourth Proportional to 783,589.85, 1,081,366.37 and 439,502.29

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Solution

The fourth proportional to 783,589.85, 1,081,366.37 and 439,502.29 is: 606,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,589.85 : 1,081,366.37 = 439,502.29 : x
  2. Step 2: Convert to fraction form
    783,589.85/1,081,366.37 = 439,502.29/x
  3. Step 3: Cross multiply
    783,589.85x = 1,081,366.37 × 439,502.29
  4. Step 4: Simplify right side
    783,589.85x = 475,262,992,691.19
  5. Step 5: Solve for x
    x = 475,262,992,691.19/783,589.85
  6. Step 6: Final answer
    x = 606,520.10

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Double scale
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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.