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Finding the Fourth Proportional to 436,000.80, 654,001.20 and 223,424.40

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Solution

The fourth proportional to 436,000.80, 654,001.20 and 223,424.40 is: 335,136.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,000.80 : 654,001.20 = 223,424.40 : x
  2. Step 2: Convert to fraction form
    436,000.80/654,001.20 = 223,424.40/x
  3. Step 3: Cross multiply
    436,000.80x = 654,001.20 × 223,424.40
  4. Step 4: Simplify right side
    436,000.80x = 146,119,825,709.28
  5. Step 5: Solve for x
    x = 146,119,825,709.28/436,000.80
  6. Step 6: Final answer
    x = 335,136.60

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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.