Home / 1,149,513.96-1,586,378.20-640,216.34

Finding the Fourth Proportional to 1,149,513.96, 1,586,378.20 and 640,216.34

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Solution

The fourth proportional to 1,149,513.96, 1,586,378.20 and 640,216.34 is: 883,525.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,149,513.96 : 1,586,378.20 = 640,216.34 : x
  2. Step 2: Convert to fraction form
    1,149,513.96/1,586,378.20 = 640,216.34/x
  3. Step 3: Cross multiply
    1,149,513.96x = 1,586,378.20 × 640,216.34
  4. Step 4: Simplify right side
    1,149,513.96x = 1,015,625,245,059.79
  5. Step 5: Solve for x
    x = 1,015,625,245,059.79/1,149,513.96
  6. Step 6: Final answer
    x = 883,525.80

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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.