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Finding the Fourth Proportional to 446,542.80, 669,814.20 and 236,590.80

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Solution

The fourth proportional to 446,542.80, 669,814.20 and 236,590.80 is: 354,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,542.80 : 669,814.20 = 236,590.80 : x
  2. Step 2: Convert to fraction form
    446,542.80/669,814.20 = 236,590.80/x
  3. Step 3: Cross multiply
    446,542.80x = 669,814.20 × 236,590.80
  4. Step 4: Simplify right side
    446,542.80x = 158,471,877,429.36
  5. Step 5: Solve for x
    x = 158,471,877,429.36/446,542.80
  6. Step 6: Final answer
    x = 354,886.20

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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.