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Finding the Fourth Proportional to 511,878.24, 767,817.60 and 262,401.12

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Solution

The fourth proportional to 511,878.24, 767,817.60 and 262,401.12 is: 393,601.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,878.24 : 767,817.60 = 262,401.12 : x
  2. Step 2: Convert to fraction form
    511,878.24/767,817.60 = 262,401.12/x
  3. Step 3: Cross multiply
    511,878.24x = 767,817.60 × 262,401.12
  4. Step 4: Simplify right side
    511,878.24x = 201,476,198,195.71
  5. Step 5: Solve for x
    x = 201,476,198,195.71/511,878.24
  6. Step 6: Final answer
    x = 393,601.80

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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.