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Finding the Fourth Proportional to 567,160.34, 782,672.08 and 309,040.73

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Solution

The fourth proportional to 567,160.34, 782,672.08 and 309,040.73 is: 426,471.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,160.34 : 782,672.08 = 309,040.73 : x
  2. Step 2: Convert to fraction form
    567,160.34/782,672.08 = 309,040.73/x
  3. Step 3: Cross multiply
    567,160.34x = 782,672.08 × 309,040.73
  4. Step 4: Simplify right side
    567,160.34x = 241,877,552,137.90
  5. Step 5: Solve for x
    x = 241,877,552,137.90/567,160.34
  6. Step 6: Final answer
    x = 426,471.20

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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.