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Finding the Fourth Proportional to 670,665.67, 1,006,098.54 and 221,434

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Solution

The fourth proportional to 670,665.67, 1,006,098.54 and 221,434 is: 332,184.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,665.67 : 1,006,098.54 = 221,434 : x
  2. Step 2: Convert to fraction form
    670,665.67/1,006,098.54 = 221,434/x
  3. Step 3: Cross multiply
    670,665.67x = 1,006,098.54 × 221,434
  4. Step 4: Simplify right side
    670,665.67x = 222,784,424,106.36
  5. Step 5: Solve for x
    x = 222,784,424,106.36/670,665.67
  6. Step 6: Final answer
    x = 332,184.03

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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.