Home / 383,231.20-528,844.80-213,461.68

Finding the Fourth Proportional to 383,231.20, 528,844.80 and 213,461.68

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Solution

The fourth proportional to 383,231.20, 528,844.80 and 213,461.68 is: 294,569.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,231.20 : 528,844.80 = 213,461.68 : x
  2. Step 2: Convert to fraction form
    383,231.20/528,844.80 = 213,461.68/x
  3. Step 3: Cross multiply
    383,231.20x = 528,844.80 × 213,461.68
  4. Step 4: Simplify right side
    383,231.20x = 112,888,099,467.26
  5. Step 5: Solve for x
    x = 112,888,099,467.26/383,231.20
  6. Step 6: Final answer
    x = 294,569.18

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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.