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Finding the Fourth Proportional to 439,897.70, 659,846.55 and 327,923.30

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Solution

The fourth proportional to 439,897.70, 659,846.55 and 327,923.30 is: 491,884.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,897.70 : 659,846.55 = 327,923.30 : x
  2. Step 2: Convert to fraction form
    439,897.70/659,846.55 = 327,923.30/x
  3. Step 3: Cross multiply
    439,897.70x = 659,846.55 × 327,923.30
  4. Step 4: Simplify right side
    439,897.70x = 216,379,058,169.62
  5. Step 5: Solve for x
    x = 216,379,058,169.62/439,897.70
  6. Step 6: Final answer
    x = 491,884.95

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Half scale
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Double scale
Find fourth proportional to 439,898.70, 659,848.05 and 327,924.30
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.