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Finding the Fourth Proportional to 1,837,469.86, 2,756,764.26 and 939,542.32

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Solution

The fourth proportional to 1,837,469.86, 2,756,764.26 and 939,542.32 is: 1,409,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,837,469.86 : 2,756,764.26 = 939,542.32 : x
  2. Step 2: Convert to fraction form
    1,837,469.86/2,756,764.26 = 939,542.32/x
  3. Step 3: Cross multiply
    1,837,469.86x = 2,756,764.26 × 939,542.32
  4. Step 4: Simplify right side
    1,837,469.86x = 2,590,096,688,533.48
  5. Step 5: Solve for x
    x = 2,590,096,688,533.48/1,837,469.86
  6. Step 6: Final answer
    x = 1,409,599.55

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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.