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Finding the Fourth Proportional to 331,932, 458,066.16 and 181,030.08

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Solution

The fourth proportional to 331,932, 458,066.16 and 181,030.08 is: 249,821.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,932 : 458,066.16 = 181,030.08 : x
  2. Step 2: Convert to fraction form
    331,932/458,066.16 = 181,030.08/x
  3. Step 3: Cross multiply
    331,932x = 458,066.16 × 181,030.08
  4. Step 4: Simplify right side
    331,932x = 82,923,753,590.09
  5. Step 5: Solve for x
    x = 82,923,753,590.09/331,932
  6. Step 6: Final answer
    x = 249,821.51

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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.