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Finding the Fourth Proportional to 543,693.40, 815,540.10 and 244,317.40

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Solution

The fourth proportional to 543,693.40, 815,540.10 and 244,317.40 is: 366,476.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,693.40 : 815,540.10 = 244,317.40 : x
  2. Step 2: Convert to fraction form
    543,693.40/815,540.10 = 244,317.40/x
  3. Step 3: Cross multiply
    543,693.40x = 815,540.10 × 244,317.40
  4. Step 4: Simplify right side
    543,693.40x = 199,250,636,827.74
  5. Step 5: Solve for x
    x = 199,250,636,827.74/543,693.40
  6. Step 6: Final answer
    x = 366,476.10

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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.