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Finding the Fourth Proportional to 474,479.25, 711,718.26 and 154,630.64

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Solution

The fourth proportional to 474,479.25, 711,718.26 and 154,630.64 is: 231,945.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,479.25 : 711,718.26 = 154,630.64 : x
  2. Step 2: Convert to fraction form
    474,479.25/711,718.26 = 154,630.64/x
  3. Step 3: Cross multiply
    474,479.25x = 711,718.26 × 154,630.64
  4. Step 4: Simplify right side
    474,479.25x = 110,053,446,484.90
  5. Step 5: Solve for x
    x = 110,053,446,484.90/474,479.25
  6. Step 6: Final answer
    x = 231,945.75

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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.