Home / 351,977.40-528,064.51-115,486.15

Finding the Fourth Proportional to 351,977.40, 528,064.51 and 115,486.15

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Solution

The fourth proportional to 351,977.40, 528,064.51 and 115,486.15 is: 173,261.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,977.40 : 528,064.51 = 115,486.15 : x
  2. Step 2: Convert to fraction form
    351,977.40/528,064.51 = 115,486.15/x
  3. Step 3: Cross multiply
    351,977.40x = 528,064.51 × 115,486.15
  4. Step 4: Simplify right side
    351,977.40x = 60,984,137,211.54
  5. Step 5: Solve for x
    x = 60,984,137,211.54/351,977.40
  6. Step 6: Final answer
    x = 173,261.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.