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Finding the Fourth Proportional to 806,193.35, 1,209,290.03 and 293,896.91

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Solution

The fourth proportional to 806,193.35, 1,209,290.03 and 293,896.91 is: 440,845.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,193.35 : 1,209,290.03 = 293,896.91 : x
  2. Step 2: Convert to fraction form
    806,193.35/1,209,290.03 = 293,896.91/x
  3. Step 3: Cross multiply
    806,193.35x = 1,209,290.03 × 293,896.91
  4. Step 4: Simplify right side
    806,193.35x = 355,406,604,940.08
  5. Step 5: Solve for x
    x = 355,406,604,940.08/806,193.35
  6. Step 6: Final answer
    x = 440,845.37

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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.