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Finding the Fourth Proportional to 338,506.93, 504,734.06 and 329,206.72

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Solution

The fourth proportional to 338,506.93, 504,734.06 and 329,206.72 is: 490,866.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,506.93 : 504,734.06 = 329,206.72 : x
  2. Step 2: Convert to fraction form
    338,506.93/504,734.06 = 329,206.72/x
  3. Step 3: Cross multiply
    338,506.93x = 504,734.06 × 329,206.72
  4. Step 4: Simplify right side
    338,506.93x = 166,161,844,364.88
  5. Step 5: Solve for x
    x = 166,161,844,364.88/338,506.93
  6. Step 6: Final answer
    x = 490,866.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.