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Finding the Fourth Proportional to 474,847.70, 655,289.92 and 259,987.82

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Solution

The fourth proportional to 474,847.70, 655,289.92 and 259,987.82 is: 358,783.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,847.70 : 655,289.92 = 259,987.82 : x
  2. Step 2: Convert to fraction form
    474,847.70/655,289.92 = 259,987.82/x
  3. Step 3: Cross multiply
    474,847.70x = 655,289.92 × 259,987.82
  4. Step 4: Simplify right side
    474,847.70x = 170,367,397,768.77
  5. Step 5: Solve for x
    x = 170,367,397,768.77/474,847.70
  6. Step 6: Final answer
    x = 358,783.24

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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.