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Finding the Fourth Proportional to 483,876.39, 666,764.65 and 374,315.19

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Solution

The fourth proportional to 483,876.39, 666,764.65 and 374,315.19 is: 515,793.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,876.39 : 666,764.65 = 374,315.19 : x
  2. Step 2: Convert to fraction form
    483,876.39/666,764.65 = 374,315.19/x
  3. Step 3: Cross multiply
    483,876.39x = 666,764.65 × 374,315.19
  4. Step 4: Simplify right side
    483,876.39x = 249,580,136,650.03
  5. Step 5: Solve for x
    x = 249,580,136,650.03/483,876.39
  6. Step 6: Final answer
    x = 515,793.17

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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.