Home / 455,825.98-683,531.07-189,427.78

Finding the Fourth Proportional to 455,825.98, 683,531.07 and 189,427.78

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Solution

The fourth proportional to 455,825.98, 683,531.07 and 189,427.78 is: 284,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,825.98 : 683,531.07 = 189,427.78 : x
  2. Step 2: Convert to fraction form
    455,825.98/683,531.07 = 189,427.78/x
  3. Step 3: Cross multiply
    455,825.98x = 683,531.07 × 189,427.78
  4. Step 4: Simplify right side
    455,825.98x = 129,479,773,151.13
  5. Step 5: Solve for x
    x = 129,479,773,151.13/455,825.98
  6. Step 6: Final answer
    x = 284,055.27

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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.