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Finding the Fourth Proportional to 446,986.65, 670,562.45 and 147,487.94

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Solution

The fourth proportional to 446,986.65, 670,562.45 and 147,487.94 is: 221,259.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    446,986.65 : 670,562.45 = 147,487.94 : x
  2. Step 2: Convert to fraction form
    446,986.65/670,562.45 = 147,487.94/x
  3. Step 3: Cross multiply
    446,986.65x = 670,562.45 × 147,487.94
  4. Step 4: Simplify right side
    446,986.65x = 98,899,873,369.29
  5. Step 5: Solve for x
    x = 98,899,873,369.29/446,986.65
  6. Step 6: Final answer
    x = 221,259.12

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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.