Home / 863,405.60-1,295,108.40-531,168.80

Finding the Fourth Proportional to 863,405.60, 1,295,108.40 and 531,168.80

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Solution

The fourth proportional to 863,405.60, 1,295,108.40 and 531,168.80 is: 796,753.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,405.60 : 1,295,108.40 = 531,168.80 : x
  2. Step 2: Convert to fraction form
    863,405.60/1,295,108.40 = 531,168.80/x
  3. Step 3: Cross multiply
    863,405.60x = 1,295,108.40 × 531,168.80
  4. Step 4: Simplify right side
    863,405.60x = 687,921,174,697.92
  5. Step 5: Solve for x
    x = 687,921,174,697.92/863,405.60
  6. Step 6: Final answer
    x = 796,753.20

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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.