Home / 809,235.81-1,116,578.71-465,005.23

Finding the Fourth Proportional to 809,235.81, 1,116,578.71 and 465,005.23

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Solution

The fourth proportional to 809,235.81, 1,116,578.71 and 465,005.23 is: 641,611.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,235.81 : 1,116,578.71 = 465,005.23 : x
  2. Step 2: Convert to fraction form
    809,235.81/1,116,578.71 = 465,005.23/x
  3. Step 3: Cross multiply
    809,235.81x = 1,116,578.71 × 465,005.23
  4. Step 4: Simplify right side
    809,235.81x = 519,214,938,171.19
  5. Step 5: Solve for x
    x = 519,214,938,171.19/809,235.81
  6. Step 6: Final answer
    x = 641,611.42

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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.