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Finding the Fourth Proportional to 324,768.96, 448,178.40 and 186,974.87

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Solution

The fourth proportional to 324,768.96, 448,178.40 and 186,974.87 is: 258,023.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,768.96 : 448,178.40 = 186,974.87 : x
  2. Step 2: Convert to fraction form
    324,768.96/448,178.40 = 186,974.87/x
  3. Step 3: Cross multiply
    324,768.96x = 448,178.40 × 186,974.87
  4. Step 4: Simplify right side
    324,768.96x = 83,798,095,835.92
  5. Step 5: Solve for x
    x = 83,798,095,835.92/324,768.96
  6. Step 6: Final answer
    x = 258,023.72

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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.