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Finding the Fourth Proportional to 545,611.44, 752,944.02 and 316,301.68

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Solution

The fourth proportional to 545,611.44, 752,944.02 and 316,301.68 is: 436,496.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,611.44 : 752,944.02 = 316,301.68 : x
  2. Step 2: Convert to fraction form
    545,611.44/752,944.02 = 316,301.68/x
  3. Step 3: Cross multiply
    545,611.44x = 752,944.02 × 316,301.68
  4. Step 4: Simplify right side
    545,611.44x = 238,157,453,125.73
  5. Step 5: Solve for x
    x = 238,157,453,125.73/545,611.44
  6. Step 6: Final answer
    x = 436,496.44

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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.