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Finding the Fourth Proportional to 324,381.39, 447,627.78 and 193,706.51

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Solution

The fourth proportional to 324,381.39, 447,627.78 and 193,706.51 is: 267,303.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,381.39 : 447,627.78 = 193,706.51 : x
  2. Step 2: Convert to fraction form
    324,381.39/447,627.78 = 193,706.51/x
  3. Step 3: Cross multiply
    324,381.39x = 447,627.78 × 193,706.51
  4. Step 4: Simplify right side
    324,381.39x = 86,708,412,804.71
  5. Step 5: Solve for x
    x = 86,708,412,804.71/324,381.39
  6. Step 6: Final answer
    x = 267,303.91

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1.5x scale

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.