Home / 644,281.06-889,083.51-357,819.60

Finding the Fourth Proportional to 644,281.06, 889,083.51 and 357,819.60

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Solution

The fourth proportional to 644,281.06, 889,083.51 and 357,819.60 is: 493,777.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,281.06 : 889,083.51 = 357,819.60 : x
  2. Step 2: Convert to fraction form
    644,281.06/889,083.51 = 357,819.60/x
  3. Step 3: Cross multiply
    644,281.06x = 889,083.51 × 357,819.60
  4. Step 4: Simplify right side
    644,281.06x = 318,131,505,914.80
  5. Step 5: Solve for x
    x = 318,131,505,914.80/644,281.06
  6. Step 6: Final answer
    x = 493,777.52

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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.