Home / 419,539.37-579,006.09-256,186.85

Finding the Fourth Proportional to 419,539.37, 579,006.09 and 256,186.85

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Solution

The fourth proportional to 419,539.37, 579,006.09 and 256,186.85 is: 353,563.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,539.37 : 579,006.09 = 256,186.85 : x
  2. Step 2: Convert to fraction form
    419,539.37/579,006.09 = 256,186.85/x
  3. Step 3: Cross multiply
    419,539.37x = 579,006.09 × 256,186.85
  4. Step 4: Simplify right side
    419,539.37x = 148,333,743,432.89
  5. Step 5: Solve for x
    x = 148,333,743,432.89/419,539.37
  6. Step 6: Final answer
    x = 353,563.35

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1.5x scale

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.