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Finding the Fourth Proportional to 6,616,783.80, 9,934,506.90 and 4,097,359.80

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Solution

The fourth proportional to 6,616,783.80, 9,934,506.90 and 4,097,359.80 is: 6,151,817.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,616,783.80 : 9,934,506.90 = 4,097,359.80 : x
  2. Step 2: Convert to fraction form
    6,616,783.80/9,934,506.90 = 4,097,359.80/x
  3. Step 3: Cross multiply
    6,616,783.80x = 9,934,506.90 × 4,097,359.80
  4. Step 4: Simplify right side
    6,616,783.80x = 40,705,249,204,882.62
  5. Step 5: Solve for x
    x = 40,705,249,204,882.62/6,616,783.80
  6. Step 6: Final answer
    x = 6,151,817.93

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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.