Home / 809,399.69-1,116,980.62-446,823.74

Finding the Fourth Proportional to 809,399.69, 1,116,980.62 and 446,823.74

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Solution

The fourth proportional to 809,399.69, 1,116,980.62 and 446,823.74 is: 616,621.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,399.69 : 1,116,980.62 = 446,823.74 : x
  2. Step 2: Convert to fraction form
    809,399.69/1,116,980.62 = 446,823.74/x
  3. Step 3: Cross multiply
    809,399.69x = 1,116,980.62 × 446,823.74
  4. Step 4: Simplify right side
    809,399.69x = 499,093,450,316.90
  5. Step 5: Solve for x
    x = 499,093,450,316.90/809,399.69
  6. Step 6: Final answer
    x = 616,621.75

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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.