Home / 313,914.06-432,710.64-256,789.62

Finding the Fourth Proportional to 313,914.06, 432,710.64 and 256,789.62

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Solution

The fourth proportional to 313,914.06, 432,710.64 and 256,789.62 is: 353,968.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,914.06 : 432,710.64 = 256,789.62 : x
  2. Step 2: Convert to fraction form
    313,914.06/432,710.64 = 256,789.62/x
  3. Step 3: Cross multiply
    313,914.06x = 432,710.64 × 256,789.62
  4. Step 4: Simplify right side
    313,914.06x = 111,115,600,815.56
  5. Step 5: Solve for x
    x = 111,115,600,815.56/313,914.06
  6. Step 6: Final answer
    x = 353,968.22

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1.5x scale

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.