Home / 383,180.76-528,784.20-213,416.10

Finding the Fourth Proportional to 383,180.76, 528,784.20 and 213,416.10

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Solution

The fourth proportional to 383,180.76, 528,784.20 and 213,416.10 is: 294,511.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,180.76 : 528,784.20 = 213,416.10 : x
  2. Step 2: Convert to fraction form
    383,180.76/528,784.20 = 213,416.10/x
  3. Step 3: Cross multiply
    383,180.76x = 528,784.20 × 213,416.10
  4. Step 4: Simplify right side
    383,180.76x = 112,851,061,705.62
  5. Step 5: Solve for x
    x = 112,851,061,705.62/383,180.76
  6. Step 6: Final answer
    x = 294,511.29

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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.