Home / 880,709.06-1,215,357.87-518,156.23

Finding the Fourth Proportional to 880,709.06, 1,215,357.87 and 518,156.23

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Solution

The fourth proportional to 880,709.06, 1,215,357.87 and 518,156.23 is: 715,043.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    880,709.06 : 1,215,357.87 = 518,156.23 : x
  2. Step 2: Convert to fraction form
    880,709.06/1,215,357.87 = 518,156.23/x
  3. Step 3: Cross multiply
    880,709.06x = 1,215,357.87 × 518,156.23
  4. Step 4: Simplify right side
    880,709.06x = 629,745,251,858.74
  5. Step 5: Solve for x
    x = 629,745,251,858.74/880,709.06
  6. Step 6: Final answer
    x = 715,043.46

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Double scale
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Similar ratio
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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.