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Finding the Fourth Proportional to 567,072.79, 782,558.02 and 308,948.92

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Solution

The fourth proportional to 567,072.79, 782,558.02 and 308,948.92 is: 426,348.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,072.79 : 782,558.02 = 308,948.92 : x
  2. Step 2: Convert to fraction form
    567,072.79/782,558.02 = 308,948.92/x
  3. Step 3: Cross multiply
    567,072.79x = 782,558.02 × 308,948.92
  4. Step 4: Simplify right side
    567,072.79x = 241,770,455,116.34
  5. Step 5: Solve for x
    x = 241,770,455,116.34/567,072.79
  6. Step 6: Final answer
    x = 426,348.19

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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.