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Finding the Fourth Proportional to 413,440.80, 620,161.20 and 176,807.40

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Solution

The fourth proportional to 413,440.80, 620,161.20 and 176,807.40 is: 265,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,440.80 : 620,161.20 = 176,807.40 : x
  2. Step 2: Convert to fraction form
    413,440.80/620,161.20 = 176,807.40/x
  3. Step 3: Cross multiply
    413,440.80x = 620,161.20 × 176,807.40
  4. Step 4: Simplify right side
    413,440.80x = 109,649,089,352.88
  5. Step 5: Solve for x
    x = 109,649,089,352.88/413,440.80
  6. Step 6: Final answer
    x = 265,211.10

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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.