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Finding the Fourth Proportional to 611,824.69, 917,755.12 and 292,010.25

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Solution

The fourth proportional to 611,824.69, 917,755.12 and 292,010.25 is: 438,024.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,824.69 : 917,755.12 = 292,010.25 : x
  2. Step 2: Convert to fraction form
    611,824.69/917,755.12 = 292,010.25/x
  3. Step 3: Cross multiply
    611,824.69x = 917,755.12 × 292,010.25
  4. Step 4: Simplify right side
    611,824.69x = 267,993,902,029.98
  5. Step 5: Solve for x
    x = 267,993,902,029.98/611,824.69
  6. Step 6: Final answer
    x = 438,024.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.