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Finding the Fourth Proportional to 632,701.80, 873,128.44 and 346,221.92

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Solution

The fourth proportional to 632,701.80, 873,128.44 and 346,221.92 is: 477,786.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,701.80 : 873,128.44 = 346,221.92 : x
  2. Step 2: Convert to fraction form
    632,701.80/873,128.44 = 346,221.92/x
  3. Step 3: Cross multiply
    632,701.80x = 873,128.44 × 346,221.92
  4. Step 4: Simplify right side
    632,701.80x = 302,296,204,903.41
  5. Step 5: Solve for x
    x = 302,296,204,903.41/632,701.80
  6. Step 6: Final answer
    x = 477,786.23

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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.