Home / 719,059.35-992,300.75-396,769.21

Finding the Fourth Proportional to 719,059.35, 992,300.75 and 396,769.21

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Solution

The fourth proportional to 719,059.35, 992,300.75 and 396,769.21 is: 547,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,059.35 : 992,300.75 = 396,769.21 : x
  2. Step 2: Convert to fraction form
    719,059.35/992,300.75 = 396,769.21/x
  3. Step 3: Cross multiply
    719,059.35x = 992,300.75 × 396,769.21
  4. Step 4: Simplify right side
    719,059.35x = 393,714,384,659.91
  5. Step 5: Solve for x
    x = 393,714,384,659.91/719,059.35
  6. Step 6: Final answer
    x = 547,540.87

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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.