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Finding the Fourth Proportional to 560,321.96, 773,256.58 and 305,672.94

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Solution

The fourth proportional to 560,321.96, 773,256.58 and 305,672.94 is: 421,835.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,321.96 : 773,256.58 = 305,672.94 : x
  2. Step 2: Convert to fraction form
    560,321.96/773,256.58 = 305,672.94/x
  3. Step 3: Cross multiply
    560,321.96x = 773,256.58 × 305,672.94
  4. Step 4: Simplify right side
    560,321.96x = 236,363,611,418.76
  5. Step 5: Solve for x
    x = 236,363,611,418.76/560,321.96
  6. Step 6: Final answer
    x = 421,835.36

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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.