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Finding the Fourth Proportional to 621,249.73, 931,973.21 and 200,427.19

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Solution

The fourth proportional to 621,249.73, 931,973.21 and 200,427.19 is: 300,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,249.73 : 931,973.21 = 200,427.19 : x
  2. Step 2: Convert to fraction form
    621,249.73/931,973.21 = 200,427.19/x
  3. Step 3: Cross multiply
    621,249.73x = 931,973.21 × 200,427.19
  4. Step 4: Simplify right side
    621,249.73x = 186,792,769,055.11
  5. Step 5: Solve for x
    x = 186,792,769,055.11/621,249.73
  6. Step 6: Final answer
    x = 300,672.60

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Double scale
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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.