Home / 778,579.20-1,167,868.80-512,858.70

Finding the Fourth Proportional to 778,579.20, 1,167,868.80 and 512,858.70

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Solution

The fourth proportional to 778,579.20, 1,167,868.80 and 512,858.70 is: 769,288.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,579.20 : 1,167,868.80 = 512,858.70 : x
  2. Step 2: Convert to fraction form
    778,579.20/1,167,868.80 = 512,858.70/x
  3. Step 3: Cross multiply
    778,579.20x = 1,167,868.80 × 512,858.70
  4. Step 4: Simplify right side
    778,579.20x = 598,951,674,538.56
  5. Step 5: Solve for x
    x = 598,951,674,538.56/778,579.20
  6. Step 6: Final answer
    x = 769,288.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.