Home / 515,927.49-711,940.90-289,529.25

Finding the Fourth Proportional to 515,927.49, 711,940.90 and 289,529.25

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Solution

The fourth proportional to 515,927.49, 711,940.90 and 289,529.25 is: 399,528.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,927.49 : 711,940.90 = 289,529.25 : x
  2. Step 2: Convert to fraction form
    515,927.49/711,940.90 = 289,529.25/x
  3. Step 3: Cross multiply
    515,927.49x = 711,940.90 × 289,529.25
  4. Step 4: Simplify right side
    515,927.49x = 206,127,714,821.33
  5. Step 5: Solve for x
    x = 206,127,714,821.33/515,927.49
  6. Step 6: Final answer
    x = 399,528.46

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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.