Home / 520,857.20-781,360.70-161,056.15

Finding the Fourth Proportional to 520,857.20, 781,360.70 and 161,056.15

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Solution

The fourth proportional to 520,857.20, 781,360.70 and 161,056.15 is: 241,607.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,857.20 : 781,360.70 = 161,056.15 : x
  2. Step 2: Convert to fraction form
    520,857.20/781,360.70 = 161,056.15/x
  3. Step 3: Cross multiply
    520,857.20x = 781,360.70 × 161,056.15
  4. Step 4: Simplify right side
    520,857.20x = 125,842,943,344.62
  5. Step 5: Solve for x
    x = 125,842,943,344.62/520,857.20
  6. Step 6: Final answer
    x = 241,607.38

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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.