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Finding the Fourth Proportional to 458,840.60, 633,301.20 and 254,961.56

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Solution

The fourth proportional to 458,840.60, 633,301.20 and 254,961.56 is: 351,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,840.60 : 633,301.20 = 254,961.56 : x
  2. Step 2: Convert to fraction form
    458,840.60/633,301.20 = 254,961.56/x
  3. Step 3: Cross multiply
    458,840.60x = 633,301.20 × 254,961.56
  4. Step 4: Simplify right side
    458,840.60x = 161,467,461,901.87
  5. Step 5: Solve for x
    x = 161,467,461,901.87/458,840.60
  6. Step 6: Final answer
    x = 351,903.17

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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.