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Finding the Fourth Proportional to 420,522.69, 580,484.03 and 250,769.37

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Solution

The fourth proportional to 420,522.69, 580,484.03 and 250,769.37 is: 346,158.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,522.69 : 580,484.03 = 250,769.37 : x
  2. Step 2: Convert to fraction form
    420,522.69/580,484.03 = 250,769.37/x
  3. Step 3: Cross multiply
    420,522.69x = 580,484.03 × 250,769.37
  4. Step 4: Simplify right side
    420,522.69x = 145,567,613,244.31
  5. Step 5: Solve for x
    x = 145,567,613,244.31/420,522.69
  6. Step 6: Final answer
    x = 346,158.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.