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Finding the Fourth Proportional to 446,290.48, 669,434.26 and 161,980.65

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Solution

The fourth proportional to 446,290.48, 669,434.26 and 161,980.65 is: 242,970.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,290.48 : 669,434.26 = 161,980.65 : x
  2. Step 2: Convert to fraction form
    446,290.48/669,434.26 = 161,980.65/x
  3. Step 3: Cross multiply
    446,290.48x = 669,434.26 × 161,980.65
  4. Step 4: Simplify right side
    446,290.48x = 108,435,395,534.52
  5. Step 5: Solve for x
    x = 108,435,395,534.52/446,290.48
  6. Step 6: Final answer
    x = 242,970.44

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Double scale
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Similar ratio
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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.