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Finding the Fourth Proportional to 683,950.65, 943,852.80 and 393,556.41

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Solution

The fourth proportional to 683,950.65, 943,852.80 and 393,556.41 is: 543,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,950.65 : 943,852.80 = 393,556.41 : x
  2. Step 2: Convert to fraction form
    683,950.65/943,852.80 = 393,556.41/x
  3. Step 3: Cross multiply
    683,950.65x = 943,852.80 × 393,556.41
  4. Step 4: Simplify right side
    683,950.65x = 371,459,319,536.45
  5. Step 5: Solve for x
    x = 371,459,319,536.45/683,950.65
  6. Step 6: Final answer
    x = 543,108.37

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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.