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Finding the Fourth Proportional to 609,699.42, 841,525.20 and 405,758.97

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Solution

The fourth proportional to 609,699.42, 841,525.20 and 405,758.97 is: 560,040.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,699.42 : 841,525.20 = 405,758.97 : x
  2. Step 2: Convert to fraction form
    609,699.42/841,525.20 = 405,758.97/x
  3. Step 3: Cross multiply
    609,699.42x = 841,525.20 × 405,758.97
  4. Step 4: Simplify right side
    609,699.42x = 341,456,398,381.04
  5. Step 5: Solve for x
    x = 341,456,398,381.04/609,699.42
  6. Step 6: Final answer
    x = 560,040.55

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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.