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Finding the Fourth Proportional to 479,981.13, 662,361.31 and 265,116.58

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Solution

The fourth proportional to 479,981.13, 662,361.31 and 265,116.58 is: 365,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,981.13 : 662,361.31 = 265,116.58 : x
  2. Step 2: Convert to fraction form
    479,981.13/662,361.31 = 265,116.58/x
  3. Step 3: Cross multiply
    479,981.13x = 662,361.31 × 265,116.58
  4. Step 4: Simplify right side
    479,981.13x = 175,602,965,231.52
  5. Step 5: Solve for x
    x = 175,602,965,231.52/479,981.13
  6. Step 6: Final answer
    x = 365,853.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.