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Finding the Fourth Proportional to 492,925.80, 739,386.30 and 193,194.60

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Solution

The fourth proportional to 492,925.80, 739,386.30 and 193,194.60 is: 289,790.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,925.80 : 739,386.30 = 193,194.60 : x
  2. Step 2: Convert to fraction form
    492,925.80/739,386.30 = 193,194.60/x
  3. Step 3: Cross multiply
    492,925.80x = 739,386.30 × 193,194.60
  4. Step 4: Simplify right side
    492,925.80x = 142,845,440,473.98
  5. Step 5: Solve for x
    x = 142,845,440,473.98/492,925.80
  6. Step 6: Final answer
    x = 289,790.96

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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.