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Finding the Fourth Proportional to 322,417.09, 444,900.24 and 186,430.45

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Solution

The fourth proportional to 322,417.09, 444,900.24 and 186,430.45 is: 257,253.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,417.09 : 444,900.24 = 186,430.45 : x
  2. Step 2: Convert to fraction form
    322,417.09/444,900.24 = 186,430.45/x
  3. Step 3: Cross multiply
    322,417.09x = 444,900.24 × 186,430.45
  4. Step 4: Simplify right side
    322,417.09x = 82,942,951,948.31
  5. Step 5: Solve for x
    x = 82,942,951,948.31/322,417.09
  6. Step 6: Final answer
    x = 257,253.58

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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.