Home / 912,679.76-1,259,448.48-504,757.76

Finding the Fourth Proportional to 912,679.76, 1,259,448.48 and 504,757.76

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Solution

The fourth proportional to 912,679.76, 1,259,448.48 and 504,757.76 is: 696,538.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,679.76 : 1,259,448.48 = 504,757.76 : x
  2. Step 2: Convert to fraction form
    912,679.76/1,259,448.48 = 504,757.76/x
  3. Step 3: Cross multiply
    912,679.76x = 1,259,448.48 × 504,757.76
  4. Step 4: Simplify right side
    912,679.76x = 635,716,393,600.21
  5. Step 5: Solve for x
    x = 635,716,393,600.21/912,679.76
  6. Step 6: Final answer
    x = 696,538.28

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Double scale
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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.