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Finding the Fourth Proportional to 302,758.60, 417,775.50 and 186,453.66

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Solution

The fourth proportional to 302,758.60, 417,775.50 and 186,453.66 is: 257,286.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,758.60 : 417,775.50 = 186,453.66 : x
  2. Step 2: Convert to fraction form
    302,758.60/417,775.50 = 186,453.66/x
  3. Step 3: Cross multiply
    302,758.60x = 417,775.50 × 186,453.66
  4. Step 4: Simplify right side
    302,758.60x = 77,895,771,033.33
  5. Step 5: Solve for x
    x = 77,895,771,033.33/302,758.60
  6. Step 6: Final answer
    x = 257,286.73

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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.