Home / 383,259.12-528,863.28-213,489.60

Finding the Fourth Proportional to 383,259.12, 528,863.28 and 213,489.60

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Solution

The fourth proportional to 383,259.12, 528,863.28 and 213,489.60 is: 294,596.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,259.12 : 528,863.28 = 213,489.60 : x
  2. Step 2: Convert to fraction form
    383,259.12/528,863.28 = 213,489.60/x
  3. Step 3: Cross multiply
    383,259.12x = 528,863.28 × 213,489.60
  4. Step 4: Simplify right side
    383,259.12x = 112,906,810,101.89
  5. Step 5: Solve for x
    x = 112,906,810,101.89/383,259.12
  6. Step 6: Final answer
    x = 294,596.54

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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.