Home / 809,259.78-1,116,611.79-465,029.22

Finding the Fourth Proportional to 809,259.78, 1,116,611.79 and 465,029.22

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Solution

The fourth proportional to 809,259.78, 1,116,611.79 and 465,029.22 is: 641,644.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,259.78 : 1,116,611.79 = 465,029.22 : x
  2. Step 2: Convert to fraction form
    809,259.78/1,116,611.79 = 465,029.22/x
  3. Step 3: Cross multiply
    809,259.78x = 1,116,611.79 × 465,029.22
  4. Step 4: Simplify right side
    809,259.78x = 519,257,109,746.50
  5. Step 5: Solve for x
    x = 519,257,109,746.50/809,259.78
  6. Step 6: Final answer
    x = 641,644.53

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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.