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Finding the Fourth Proportional to 591,703.80, 887,555.70 and 491,976.60

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Solution

The fourth proportional to 591,703.80, 887,555.70 and 491,976.60 is: 737,964.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,703.80 : 887,555.70 = 491,976.60 : x
  2. Step 2: Convert to fraction form
    591,703.80/887,555.70 = 491,976.60/x
  3. Step 3: Cross multiply
    591,703.80x = 887,555.70 × 491,976.60
  4. Step 4: Simplify right side
    591,703.80x = 436,656,635,596.62
  5. Step 5: Solve for x
    x = 436,656,635,596.62/591,703.80
  6. Step 6: Final answer
    x = 737,964.90

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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.