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Finding the Fourth Proportional to 621,375.19, 931,768.29 and 216,426.17

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Solution

The fourth proportional to 621,375.19, 931,768.29 and 216,426.17 is: 324,536.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,375.19 : 931,768.29 = 216,426.17 : x
  2. Step 2: Convert to fraction form
    621,375.19/931,768.29 = 216,426.17/x
  3. Step 3: Cross multiply
    621,375.19x = 931,768.29 × 216,426.17
  4. Step 4: Simplify right side
    621,375.19x = 201,659,044,661.57
  5. Step 5: Solve for x
    x = 201,659,044,661.57/621,375.19
  6. Step 6: Final answer
    x = 324,536.69

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1.5x scale

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.