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Finding the Fourth Proportional to 486,053.80, 729,080.70 and 367,955.80

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Solution

The fourth proportional to 486,053.80, 729,080.70 and 367,955.80 is: 551,933.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,053.80 : 729,080.70 = 367,955.80 : x
  2. Step 2: Convert to fraction form
    486,053.80/729,080.70 = 367,955.80/x
  3. Step 3: Cross multiply
    486,053.80x = 729,080.70 × 367,955.80
  4. Step 4: Simplify right side
    486,053.80x = 268,269,472,233.06
  5. Step 5: Solve for x
    x = 268,269,472,233.06/486,053.80
  6. Step 6: Final answer
    x = 551,933.70

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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.