Home / 515,083.80-772,625.70-263,141.40

Finding the Fourth Proportional to 515,083.80, 772,625.70 and 263,141.40

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Solution

The fourth proportional to 515,083.80, 772,625.70 and 263,141.40 is: 394,712.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,083.80 : 772,625.70 = 263,141.40 : x
  2. Step 2: Convert to fraction form
    515,083.80/772,625.70 = 263,141.40/x
  3. Step 3: Cross multiply
    515,083.80x = 772,625.70 × 263,141.40
  4. Step 4: Simplify right side
    515,083.80x = 203,309,808,373.98
  5. Step 5: Solve for x
    x = 203,309,808,373.98/515,083.80
  6. Step 6: Final answer
    x = 394,712.10

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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.