Home / 520,336.14-718,077.87-293,976.78

Finding the Fourth Proportional to 520,336.14, 718,077.87 and 293,976.78

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Solution

The fourth proportional to 520,336.14, 718,077.87 and 293,976.78 is: 405,695.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,336.14 : 718,077.87 = 293,976.78 : x
  2. Step 2: Convert to fraction form
    520,336.14/718,077.87 = 293,976.78/x
  3. Step 3: Cross multiply
    520,336.14x = 718,077.87 × 293,976.78
  4. Step 4: Simplify right side
    520,336.14x = 211,098,220,011.86
  5. Step 5: Solve for x
    x = 211,098,220,011.86/520,336.14
  6. Step 6: Final answer
    x = 405,695.86

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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.