Home / 515,260.63-711,071.06-285,810.44

Finding the Fourth Proportional to 515,260.63, 711,071.06 and 285,810.44

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Solution

The fourth proportional to 515,260.63, 711,071.06 and 285,810.44 is: 394,424.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,260.63 : 711,071.06 = 285,810.44 : x
  2. Step 2: Convert to fraction form
    515,260.63/711,071.06 = 285,810.44/x
  3. Step 3: Cross multiply
    515,260.63x = 711,071.06 × 285,810.44
  4. Step 4: Simplify right side
    515,260.63x = 203,231,532,529.87
  5. Step 5: Solve for x
    x = 203,231,532,529.87/515,260.63
  6. Step 6: Final answer
    x = 394,424.73

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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.