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Finding the Fourth Proportional to 448,486.53, 671,968.53 and 270,619.80

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Solution

The fourth proportional to 448,486.53, 671,968.53 and 270,619.80 is: 405,470.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,486.53 : 671,968.53 = 270,619.80 : x
  2. Step 2: Convert to fraction form
    448,486.53/671,968.53 = 270,619.80/x
  3. Step 3: Cross multiply
    448,486.53x = 671,968.53 × 270,619.80
  4. Step 4: Simplify right side
    448,486.53x = 181,847,989,194.89
  5. Step 5: Solve for x
    x = 181,847,989,194.89/448,486.53
  6. Step 6: Final answer
    x = 405,470.35

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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.