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Finding the Fourth Proportional to 486,006.11, 670,704.54 and 265,255.46

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Solution

The fourth proportional to 486,006.11, 670,704.54 and 265,255.46 is: 366,061.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,006.11 : 670,704.54 = 265,255.46 : x
  2. Step 2: Convert to fraction form
    486,006.11/670,704.54 = 265,255.46/x
  3. Step 3: Cross multiply
    486,006.11x = 670,704.54 × 265,255.46
  4. Step 4: Simplify right side
    486,006.11x = 177,908,039,448.70
  5. Step 5: Solve for x
    x = 177,908,039,448.70/486,006.11
  6. Step 6: Final answer
    x = 366,061.32

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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.