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Finding the Fourth Proportional to 469,950.90, 648,530.06 and 255,089.09

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Solution

The fourth proportional to 469,950.90, 648,530.06 and 255,089.09 is: 352,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,950.90 : 648,530.06 = 255,089.09 : x
  2. Step 2: Convert to fraction form
    469,950.90/648,530.06 = 255,089.09/x
  3. Step 3: Cross multiply
    469,950.90x = 648,530.06 × 255,089.09
  4. Step 4: Simplify right side
    469,950.90x = 165,432,938,324.95
  5. Step 5: Solve for x
    x = 165,432,938,324.95/469,950.90
  6. Step 6: Final answer
    x = 352,021.75

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.