Home / 383,199.60-528,824.79-213,436.56

Finding the Fourth Proportional to 383,199.60, 528,824.79 and 213,436.56

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Solution

The fourth proportional to 383,199.60, 528,824.79 and 213,436.56 is: 294,547.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,199.60 : 528,824.79 = 213,436.56 : x
  2. Step 2: Convert to fraction form
    383,199.60/528,824.79 = 213,436.56/x
  3. Step 3: Cross multiply
    383,199.60x = 528,824.79 × 213,436.56
  4. Step 4: Simplify right side
    383,199.60x = 112,870,544,020.32
  5. Step 5: Solve for x
    x = 112,870,544,020.32/383,199.60
  6. Step 6: Final answer
    x = 294,547.66

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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.