Home / 389,895.33-583,512.30-326,786.75

Finding the Fourth Proportional to 389,895.33, 583,512.30 and 326,786.75

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Solution

The fourth proportional to 389,895.33, 583,512.30 and 326,786.75 is: 489,064.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,895.33 : 583,512.30 = 326,786.75 : x
  2. Step 2: Convert to fraction form
    389,895.33/583,512.30 = 326,786.75/x
  3. Step 3: Cross multiply
    389,895.33x = 583,512.30 × 326,786.75
  4. Step 4: Simplify right side
    389,895.33x = 190,684,085,184.46
  5. Step 5: Solve for x
    x = 190,684,085,184.46/389,895.33
  6. Step 6: Final answer
    x = 489,064.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.