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Finding the Fourth Proportional to 458,938.95, 633,336.43 and 254,990.06

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Solution

The fourth proportional to 458,938.95, 633,336.43 and 254,990.06 is: 351,886.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,938.95 : 633,336.43 = 254,990.06 : x
  2. Step 2: Convert to fraction form
    458,938.95/633,336.43 = 254,990.06/x
  3. Step 3: Cross multiply
    458,938.95x = 633,336.43 × 254,990.06
  4. Step 4: Simplify right side
    458,938.95x = 161,494,494,285.89
  5. Step 5: Solve for x
    x = 161,494,494,285.89/458,938.95
  6. Step 6: Final answer
    x = 351,886.66

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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.