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Finding the Fourth Proportional to 445,525.80, 668,288.70 and 235,573.80

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Solution

The fourth proportional to 445,525.80, 668,288.70 and 235,573.80 is: 353,360.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,525.80 : 668,288.70 = 235,573.80 : x
  2. Step 2: Convert to fraction form
    445,525.80/668,288.70 = 235,573.80/x
  3. Step 3: Cross multiply
    445,525.80x = 668,288.70 × 235,573.80
  4. Step 4: Simplify right side
    445,525.80x = 157,431,308,556.06
  5. Step 5: Solve for x
    x = 157,431,308,556.06/445,525.80
  6. Step 6: Final answer
    x = 353,360.70

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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.