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Finding the Fourth Proportional to 446,421.80, 669,555.90 and 165,794.60

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Solution

The fourth proportional to 446,421.80, 669,555.90 and 165,794.60 is: 248,663.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,421.80 : 669,555.90 = 165,794.60 : x
  2. Step 2: Convert to fraction form
    446,421.80/669,555.90 = 165,794.60/x
  3. Step 3: Cross multiply
    446,421.80x = 669,555.90 × 165,794.60
  4. Step 4: Simplify right side
    446,421.80x = 111,008,752,618.14
  5. Step 5: Solve for x
    x = 111,008,752,618.14/446,421.80
  6. Step 6: Final answer
    x = 248,663.38

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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.