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Finding the Fourth Proportional to 322,465.08, 445,011 and 186,486.06

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Solution

The fourth proportional to 322,465.08, 445,011 and 186,486.06 is: 257,356.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,465.08 : 445,011 = 186,486.06 : x
  2. Step 2: Convert to fraction form
    322,465.08/445,011 = 186,486.06/x
  3. Step 3: Cross multiply
    322,465.08x = 445,011 × 186,486.06
  4. Step 4: Simplify right side
    322,465.08x = 82,988,348,046.66
  5. Step 5: Solve for x
    x = 82,988,348,046.66/322,465.08
  6. Step 6: Final answer
    x = 257,356.08

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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.