Home / 383,135.14-528,688.64-213,385.06

Finding the Fourth Proportional to 383,135.14, 528,688.64 and 213,385.06

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Solution

The fourth proportional to 383,135.14, 528,688.64 and 213,385.06 is: 294,450.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,135.14 : 528,688.64 = 213,385.06 : x
  2. Step 2: Convert to fraction form
    383,135.14/528,688.64 = 213,385.06/x
  3. Step 3: Cross multiply
    383,135.14x = 528,688.64 × 213,385.06
  4. Step 4: Simplify right side
    383,135.14x = 112,814,257,167.72
  5. Step 5: Solve for x
    x = 112,814,257,167.72/383,135.14
  6. Step 6: Final answer
    x = 294,450.30

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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.