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Finding the Fourth Proportional to 8,309,342.40, 12,465,698.40 and 4,716,830.40

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Solution

The fourth proportional to 8,309,342.40, 12,465,698.40 and 4,716,830.40 is: 7,076,201.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,309,342.40 : 12,465,698.40 = 4,716,830.40 : x
  2. Step 2: Convert to fraction form
    8,309,342.40/12,465,698.40 = 4,716,830.40/x
  3. Step 3: Cross multiply
    8,309,342.40x = 12,465,698.40 × 4,716,830.40
  4. Step 4: Simplify right side
    8,309,342.40x = 58,798,585,170,351.37
  5. Step 5: Solve for x
    x = 58,798,585,170,351.37/8,309,342.40
  6. Step 6: Final answer
    x = 7,076,201.98

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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.