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Finding the Fourth Proportional to 480,583.86, 720,309.90 and 196,096.87

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Solution

The fourth proportional to 480,583.86, 720,309.90 and 196,096.87 is: 293,914.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,583.86 : 720,309.90 = 196,096.87 : x
  2. Step 2: Convert to fraction form
    480,583.86/720,309.90 = 196,096.87/x
  3. Step 3: Cross multiply
    480,583.86x = 720,309.90 × 196,096.87
  4. Step 4: Simplify right side
    480,583.86x = 141,250,516,820.01
  5. Step 5: Solve for x
    x = 141,250,516,820.01/480,583.86
  6. Step 6: Final answer
    x = 293,914.40

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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.