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Finding the Fourth Proportional to 1,698,576, 2,548,257.66 and 576,645

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Solution

The fourth proportional to 1,698,576, 2,548,257.66 and 576,645 is: 865,101.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,698,576 : 2,548,257.66 = 576,645 : x
  2. Step 2: Convert to fraction form
    1,698,576/2,548,257.66 = 576,645/x
  3. Step 3: Cross multiply
    1,698,576x = 2,548,257.66 × 576,645
  4. Step 4: Simplify right side
    1,698,576x = 1,469,440,038,350.70
  5. Step 5: Solve for x
    x = 1,469,440,038,350.70/1,698,576
  6. Step 6: Final answer
    x = 865,101.14

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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.