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Finding the Fourth Proportional to 635,130, 952,882.15 and 255,855.56

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Solution

The fourth proportional to 635,130, 952,882.15 and 255,855.56 is: 383,858.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,130 : 952,882.15 = 255,855.56 : x
  2. Step 2: Convert to fraction form
    635,130/952,882.15 = 255,855.56/x
  3. Step 3: Cross multiply
    635,130x = 952,882.15 × 255,855.56
  4. Step 4: Simplify right side
    635,130x = 243,800,197,518.09
  5. Step 5: Solve for x
    x = 243,800,197,518.09/635,130
  6. Step 6: Final answer
    x = 383,858.73

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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.