Home / 520,961.10-781,457.58-179,400.84

Finding the Fourth Proportional to 520,961.10, 781,457.58 and 179,400.84

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Solution

The fourth proportional to 520,961.10, 781,457.58 and 179,400.84 is: 269,106.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,961.10 : 781,457.58 = 179,400.84 : x
  2. Step 2: Convert to fraction form
    520,961.10/781,457.58 = 179,400.84/x
  3. Step 3: Cross multiply
    520,961.10x = 781,457.58 × 179,400.84
  4. Step 4: Simplify right side
    520,961.10x = 140,194,146,276.37
  5. Step 5: Solve for x
    x = 140,194,146,276.37/520,961.10
  6. Step 6: Final answer
    x = 269,106.75

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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.