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Finding the Fourth Proportional to 486,225.84, 670,188.56 and 325,022.07

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Solution

The fourth proportional to 486,225.84, 670,188.56 and 325,022.07 is: 447,993.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,225.84 : 670,188.56 = 325,022.07 : x
  2. Step 2: Convert to fraction form
    486,225.84/670,188.56 = 325,022.07/x
  3. Step 3: Cross multiply
    486,225.84x = 670,188.56 × 325,022.07
  4. Step 4: Simplify right side
    486,225.84x = 217,826,073,061.52
  5. Step 5: Solve for x
    x = 217,826,073,061.52/486,225.84
  6. Step 6: Final answer
    x = 447,993.62

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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.