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Finding the Fourth Proportional to 6,288,762.38, 8,678,409.02 and 3,497,866.78

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Solution

The fourth proportional to 6,288,762.38, 8,678,409.02 and 3,497,866.78 is: 4,827,009.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288,762.38 : 8,678,409.02 = 3,497,866.78 : x
  2. Step 2: Convert to fraction form
    6,288,762.38/8,678,409.02 = 3,497,866.78/x
  3. Step 3: Cross multiply
    6,288,762.38x = 8,678,409.02 × 3,497,866.78
  4. Step 4: Simplify right side
    6,288,762.38x = 30,355,918,614,310.35
  5. Step 5: Solve for x
    x = 30,355,918,614,310.35/6,288,762.38
  6. Step 6: Final answer
    x = 4,827,009.96

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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.