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Finding the Fourth Proportional to 1,837,581.88, 2,756,154.12 and 489,845.56

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Solution

The fourth proportional to 1,837,581.88, 2,756,154.12 and 489,845.56 is: 734,710.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,581.88 : 2,756,154.12 = 489,845.56 : x
  2. Step 2: Convert to fraction form
    1,837,581.88/2,756,154.12 = 489,845.56/x
  3. Step 3: Cross multiply
    1,837,581.88x = 2,756,154.12 × 489,845.56
  4. Step 4: Simplify right side
    1,837,581.88x = 1,350,089,858,357.71
  5. Step 5: Solve for x
    x = 1,350,089,858,357.71/1,837,581.88
  6. Step 6: Final answer
    x = 734,710.04

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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.