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Finding the Fourth Proportional to 329,107.80, 493,272.90 and 245,904.60

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Solution

The fourth proportional to 329,107.80, 493,272.90 and 245,904.60 is: 368,566.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,107.80 : 493,272.90 = 245,904.60 : x
  2. Step 2: Convert to fraction form
    329,107.80/493,272.90 = 245,904.60/x
  3. Step 3: Cross multiply
    329,107.80x = 493,272.90 × 245,904.60
  4. Step 4: Simplify right side
    329,107.80x = 121,298,075,165.34
  5. Step 5: Solve for x
    x = 121,298,075,165.34/329,107.80
  6. Step 6: Final answer
    x = 368,566.39

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.