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Finding the Fourth Proportional to 468,840.48, 646,999.26 and 253,981.42

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Solution

The fourth proportional to 468,840.48, 646,999.26 and 253,981.42 is: 350,494.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,840.48 : 646,999.26 = 253,981.42 : x
  2. Step 2: Convert to fraction form
    468,840.48/646,999.26 = 253,981.42/x
  3. Step 3: Cross multiply
    468,840.48x = 646,999.26 × 253,981.42
  4. Step 4: Simplify right side
    468,840.48x = 164,325,790,793.75
  5. Step 5: Solve for x
    x = 164,325,790,793.75/468,840.48
  6. Step 6: Final answer
    x = 350,494.03

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1.5x scale

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.