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Finding the Fourth Proportional to 483,468.68, 666,648.94 and 330,531.80

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Solution

The fourth proportional to 483,468.68, 666,648.94 and 330,531.80 is: 455,766.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,468.68 : 666,648.94 = 330,531.80 : x
  2. Step 2: Convert to fraction form
    483,468.68/666,648.94 = 330,531.80/x
  3. Step 3: Cross multiply
    483,468.68x = 666,648.94 × 330,531.80
  4. Step 4: Simplify right side
    483,468.68x = 220,348,674,106.29
  5. Step 5: Solve for x
    x = 220,348,674,106.29/483,468.68
  6. Step 6: Final answer
    x = 455,766.18

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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.