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Finding the Fourth Proportional to 590,911.76, 885,755.28 and 275,108.96

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Solution

The fourth proportional to 590,911.76, 885,755.28 and 275,108.96 is: 412,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    590,911.76 : 885,755.28 = 275,108.96 : x
  2. Step 2: Convert to fraction form
    590,911.76/885,755.28 = 275,108.96/x
  3. Step 3: Cross multiply
    590,911.76x = 885,755.28 × 275,108.96
  4. Step 4: Simplify right side
    590,911.76x = 243,679,213,895.31
  5. Step 5: Solve for x
    x = 243,679,213,895.31/590,911.76
  6. Step 6: Final answer
    x = 412,378.35

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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.