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Finding the Fourth Proportional to 446,129.70, 669,194.55 and 401,028.90

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Solution

The fourth proportional to 446,129.70, 669,194.55 and 401,028.90 is: 601,543.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,129.70 : 669,194.55 = 401,028.90 : x
  2. Step 2: Convert to fraction form
    446,129.70/669,194.55 = 401,028.90/x
  3. Step 3: Cross multiply
    446,129.70x = 669,194.55 × 401,028.90
  4. Step 4: Simplify right side
    446,129.70x = 268,366,354,272.50
  5. Step 5: Solve for x
    x = 268,366,354,272.50/446,129.70
  6. Step 6: Final answer
    x = 601,543.35

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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.