Home / 383,052.32-528,531.72-221,897.72

Finding the Fourth Proportional to 383,052.32, 528,531.72 and 221,897.72

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Solution

The fourth proportional to 383,052.32, 528,531.72 and 221,897.72 is: 306,172.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,052.32 : 528,531.72 = 221,897.72 : x
  2. Step 2: Convert to fraction form
    383,052.32/528,531.72 = 221,897.72/x
  3. Step 3: Cross multiply
    383,052.32x = 528,531.72 × 221,897.72
  4. Step 4: Simplify right side
    383,052.32x = 117,279,983,615.68
  5. Step 5: Solve for x
    x = 117,279,983,615.68/383,052.32
  6. Step 6: Final answer
    x = 306,172.23

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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.