Home / 519,816.30-717,358.41-305,111.22

Finding the Fourth Proportional to 519,816.30, 717,358.41 and 305,111.22

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Solution

The fourth proportional to 519,816.30, 717,358.41 and 305,111.22 is: 421,060.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,816.30 : 717,358.41 = 305,111.22 : x
  2. Step 2: Convert to fraction form
    519,816.30/717,358.41 = 305,111.22/x
  3. Step 3: Cross multiply
    519,816.30x = 717,358.41 × 305,111.22
  4. Step 4: Simplify right side
    519,816.30x = 218,874,099,652.36
  5. Step 5: Solve for x
    x = 218,874,099,652.36/519,816.30
  6. Step 6: Final answer
    x = 421,060.48

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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.