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Finding the Fourth Proportional to 516,514.74, 774,785.96 and 161,528.76

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Solution

The fourth proportional to 516,514.74, 774,785.96 and 161,528.76 is: 242,297.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,514.74 : 774,785.96 = 161,528.76 : x
  2. Step 2: Convert to fraction form
    516,514.74/774,785.96 = 161,528.76/x
  3. Step 3: Cross multiply
    516,514.74x = 774,785.96 × 161,528.76
  4. Step 4: Simplify right side
    516,514.74x = 125,150,214,576.57
  5. Step 5: Solve for x
    x = 125,150,214,576.57/516,514.74
  6. Step 6: Final answer
    x = 242,297.47

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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.