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Finding the Fourth Proportional to 706,040.63, 1,058,728.29 and 256,444.46

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Solution

The fourth proportional to 706,040.63, 1,058,728.29 and 256,444.46 is: 384,545.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,040.63 : 1,058,728.29 = 256,444.46 : x
  2. Step 2: Convert to fraction form
    706,040.63/1,058,728.29 = 256,444.46/x
  3. Step 3: Cross multiply
    706,040.63x = 1,058,728.29 × 256,444.46
  4. Step 4: Simplify right side
    706,040.63x = 271,505,004,615.77
  5. Step 5: Solve for x
    x = 271,505,004,615.77/706,040.63
  6. Step 6: Final answer
    x = 384,545.86

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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.