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Finding the Fourth Proportional to 469,887.29, 648,427.99 and 255,023.05

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Solution

The fourth proportional to 469,887.29, 648,427.99 and 255,023.05 is: 351,922.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,887.29 : 648,427.99 = 255,023.05 : x
  2. Step 2: Convert to fraction form
    469,887.29/648,427.99 = 255,023.05/x
  3. Step 3: Cross multiply
    469,887.29x = 648,427.99 × 255,023.05
  4. Step 4: Simplify right side
    469,887.29x = 165,364,083,715.17
  5. Step 5: Solve for x
    x = 165,364,083,715.17/469,887.29
  6. Step 6: Final answer
    x = 351,922.87

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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.