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Finding the Fourth Proportional to 1,933,928.81, 2,899,503.72 and 908,680.96

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Solution

The fourth proportional to 1,933,928.81, 2,899,503.72 and 908,680.96 is: 1,362,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,933,928.81 : 2,899,503.72 = 908,680.96 : x
  2. Step 2: Convert to fraction form
    1,933,928.81/2,899,503.72 = 908,680.96/x
  3. Step 3: Cross multiply
    1,933,928.81x = 2,899,503.72 × 908,680.96
  4. Step 4: Simplify right side
    1,933,928.81x = 2,634,723,816,564.41
  5. Step 5: Solve for x
    x = 2,634,723,816,564.41/1,933,928.81
  6. Step 6: Final answer
    x = 1,362,368.57

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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.