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Finding the Fourth Proportional to 6,339,239.42, 8,738,443.49 and 3,887,303.54

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Solution

The fourth proportional to 6,339,239.42, 8,738,443.49 and 3,887,303.54 is: 5,358,526.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,339,239.42 : 8,738,443.49 = 3,887,303.54 : x
  2. Step 2: Convert to fraction form
    6,339,239.42/8,738,443.49 = 3,887,303.54/x
  3. Step 3: Cross multiply
    6,339,239.42x = 8,738,443.49 × 3,887,303.54
  4. Step 4: Simplify right side
    6,339,239.42x = 33,968,982,249,638.22
  5. Step 5: Solve for x
    x = 33,968,982,249,638.22/6,339,239.42
  6. Step 6: Final answer
    x = 5,358,526.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.