Home / 912,378.54-1,259,101.38-504,513.96

Finding the Fourth Proportional to 912,378.54, 1,259,101.38 and 504,513.96

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Solution

The fourth proportional to 912,378.54, 1,259,101.38 and 504,513.96 is: 696,239.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,378.54 : 1,259,101.38 = 504,513.96 : x
  2. Step 2: Convert to fraction form
    912,378.54/1,259,101.38 = 504,513.96/x
  3. Step 3: Cross multiply
    912,378.54x = 1,259,101.38 × 504,513.96
  4. Step 4: Simplify right side
    912,378.54x = 635,234,223,265.27
  5. Step 5: Solve for x
    x = 635,234,223,265.27/912,378.54
  6. Step 6: Final answer
    x = 696,239.77

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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.