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Finding the Fourth Proportional to 492,827.61, 739,241.42 and 193,449.18

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Solution

The fourth proportional to 492,827.61, 739,241.42 and 193,449.18 is: 290,173.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,827.61 : 739,241.42 = 193,449.18 : x
  2. Step 2: Convert to fraction form
    492,827.61/739,241.42 = 193,449.18/x
  3. Step 3: Cross multiply
    492,827.61x = 739,241.42 × 193,449.18
  4. Step 4: Simplify right side
    492,827.61x = 143,005,646,521.04
  5. Step 5: Solve for x
    x = 143,005,646,521.04/492,827.61
  6. Step 6: Final answer
    x = 290,173.77

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Similar ratio
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1.5x scale

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.