Home / 912,380.90-1,259,063.20-504,471.92

Finding the Fourth Proportional to 912,380.90, 1,259,063.20 and 504,471.92

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Solution

The fourth proportional to 912,380.90, 1,259,063.20 and 504,471.92 is: 696,158.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,380.90 : 1,259,063.20 = 504,471.92 : x
  2. Step 2: Convert to fraction form
    912,380.90/1,259,063.20 = 504,471.92/x
  3. Step 3: Cross multiply
    912,380.90x = 1,259,063.20 × 504,471.92
  4. Step 4: Simplify right side
    912,380.90x = 635,162,029,905.34
  5. Step 5: Solve for x
    x = 635,162,029,905.34/912,380.90
  6. Step 6: Final answer
    x = 696,158.84

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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.