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Finding the Fourth Proportional to 811,396.92, 1,119,630.57 and 448,771.80

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Solution

The fourth proportional to 811,396.92, 1,119,630.57 and 448,771.80 is: 619,251.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,396.92 : 1,119,630.57 = 448,771.80 : x
  2. Step 2: Convert to fraction form
    811,396.92/1,119,630.57 = 448,771.80/x
  3. Step 3: Cross multiply
    811,396.92x = 1,119,630.57 × 448,771.80
  4. Step 4: Simplify right side
    811,396.92x = 502,458,626,233.93
  5. Step 5: Solve for x
    x = 502,458,626,233.93/811,396.92
  6. Step 6: Final answer
    x = 619,251.34

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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.