Home / 1,394,171.40-2,091,257.10-447,637.80

Finding the Fourth Proportional to 1,394,171.40, 2,091,257.10 and 447,637.80

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Solution

The fourth proportional to 1,394,171.40, 2,091,257.10 and 447,637.80 is: 671,456.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,394,171.40 : 2,091,257.10 = 447,637.80 : x
  2. Step 2: Convert to fraction form
    1,394,171.40/2,091,257.10 = 447,637.80/x
  3. Step 3: Cross multiply
    1,394,171.40x = 2,091,257.10 × 447,637.80
  4. Step 4: Simplify right side
    1,394,171.40x = 936,125,727,478.38
  5. Step 5: Solve for x
    x = 936,125,727,478.38/1,394,171.40
  6. Step 6: Final answer
    x = 671,456.70

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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.