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Finding the Fourth Proportional to 700,908.60, 1,051,362.78 and 168,429.62

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Solution

The fourth proportional to 700,908.60, 1,051,362.78 and 168,429.62 is: 252,644.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,908.60 : 1,051,362.78 = 168,429.62 : x
  2. Step 2: Convert to fraction form
    700,908.60/1,051,362.78 = 168,429.62/x
  3. Step 3: Cross multiply
    700,908.60x = 1,051,362.78 × 168,429.62
  4. Step 4: Simplify right side
    700,908.60x = 177,080,633,517.54
  5. Step 5: Solve for x
    x = 177,080,633,517.54/700,908.60
  6. Step 6: Final answer
    x = 252,644.40

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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.