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Finding the Fourth Proportional to 302,414.78, 417,338.10 and 166,447.77

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Solution

The fourth proportional to 302,414.78, 417,338.10 and 166,447.77 is: 229,701.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,414.78 : 417,338.10 = 166,447.77 : x
  2. Step 2: Convert to fraction form
    302,414.78/417,338.10 = 166,447.77/x
  3. Step 3: Cross multiply
    302,414.78x = 417,338.10 × 166,447.77
  4. Step 4: Simplify right side
    302,414.78x = 69,464,996,081.04
  5. Step 5: Solve for x
    x = 69,464,996,081.04/302,414.78
  6. Step 6: Final answer
    x = 229,701.07

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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.