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Finding the Fourth Proportional to 409,626.60, 614,828.70 and 252,162.60

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Solution

The fourth proportional to 409,626.60, 614,828.70 and 252,162.60 is: 378,483.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,626.60 : 614,828.70 = 252,162.60 : x
  2. Step 2: Convert to fraction form
    409,626.60/614,828.70 = 252,162.60/x
  3. Step 3: Cross multiply
    409,626.60x = 614,828.70 × 252,162.60
  4. Step 4: Simplify right side
    409,626.60x = 155,036,803,546.62
  5. Step 5: Solve for x
    x = 155,036,803,546.62/409,626.60
  6. Step 6: Final answer
    x = 378,483.24

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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.