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Finding the Fourth Proportional to 484,139.58, 667,948.59 and 346,201.98

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Solution

The fourth proportional to 484,139.58, 667,948.59 and 346,201.98 is: 477,641.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,139.58 : 667,948.59 = 346,201.98 : x
  2. Step 2: Convert to fraction form
    484,139.58/667,948.59 = 346,201.98/x
  3. Step 3: Cross multiply
    484,139.58x = 667,948.59 × 346,201.98
  4. Step 4: Simplify right side
    484,139.58x = 231,245,124,396.21
  5. Step 5: Solve for x
    x = 231,245,124,396.21/484,139.58
  6. Step 6: Final answer
    x = 477,641.44

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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.