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Finding the Fourth Proportional to 543,612.10, 815,418.15 and 504,246.10

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Solution

The fourth proportional to 543,612.10, 815,418.15 and 504,246.10 is: 756,369.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,612.10 : 815,418.15 = 504,246.10 : x
  2. Step 2: Convert to fraction form
    543,612.10/815,418.15 = 504,246.10/x
  3. Step 3: Cross multiply
    543,612.10x = 815,418.15 × 504,246.10
  4. Step 4: Simplify right side
    543,612.10x = 411,171,422,006.72
  5. Step 5: Solve for x
    x = 411,171,422,006.72/543,612.10
  6. Step 6: Final answer
    x = 756,369.15

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Half scale
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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.