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Finding the Fourth Proportional to 3,158,987.88, 4,738,495.65 and 1,000,023.54

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Solution

The fourth proportional to 3,158,987.88, 4,738,495.65 and 1,000,023.54 is: 1,500,039.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,158,987.88 : 4,738,495.65 = 1,000,023.54 : x
  2. Step 2: Convert to fraction form
    3,158,987.88/4,738,495.65 = 1,000,023.54/x
  3. Step 3: Cross multiply
    3,158,987.88x = 4,738,495.65 × 1,000,023.54
  4. Step 4: Simplify right side
    3,158,987.88x = 4,738,607,172,668.15
  5. Step 5: Solve for x
    x = 4,738,607,172,668.15/3,158,987.88
  6. Step 6: Final answer
    x = 1,500,039.68

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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.