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Finding the Fourth Proportional to 5,503,728.90, 8,256,370.95 and 1,716,816.90

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Solution

The fourth proportional to 5,503,728.90, 8,256,370.95 and 1,716,816.90 is: 2,575,467.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,503,728.90 : 8,256,370.95 = 1,716,816.90 : x
  2. Step 2: Convert to fraction form
    5,503,728.90/8,256,370.95 = 1,716,816.90/x
  3. Step 3: Cross multiply
    5,503,728.90x = 8,256,370.95 × 1,716,816.90
  4. Step 4: Simplify right side
    5,503,728.90x = 14,174,677,179,629.05
  5. Step 5: Solve for x
    x = 14,174,677,179,629.05/5,503,728.90
  6. Step 6: Final answer
    x = 2,575,467.91

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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.