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Finding the Fourth Proportional to 339,870.10, 509,805.15 and 182,406.10

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Solution

The fourth proportional to 339,870.10, 509,805.15 and 182,406.10 is: 273,609.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,870.10 : 509,805.15 = 182,406.10 : x
  2. Step 2: Convert to fraction form
    339,870.10/509,805.15 = 182,406.10/x
  3. Step 3: Cross multiply
    339,870.10x = 509,805.15 × 182,406.10
  4. Step 4: Simplify right side
    339,870.10x = 92,991,569,171.42
  5. Step 5: Solve for x
    x = 92,991,569,171.42/339,870.10
  6. Step 6: Final answer
    x = 273,609.15

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Double scale
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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.