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Finding the Fourth Proportional to 475,018.44, 655,525.86 and 257,226.44

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Solution

The fourth proportional to 475,018.44, 655,525.86 and 257,226.44 is: 354,972.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,018.44 : 655,525.86 = 257,226.44 : x
  2. Step 2: Convert to fraction form
    475,018.44/655,525.86 = 257,226.44/x
  3. Step 3: Cross multiply
    475,018.44x = 655,525.86 × 257,226.44
  4. Step 4: Simplify right side
    475,018.44x = 168,618,583,295.74
  5. Step 5: Solve for x
    x = 168,618,583,295.74/475,018.44
  6. Step 6: Final answer
    x = 354,972.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.