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Finding the Fourth Proportional to 365,931.45, 548,615.79 and 185,868.92

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Solution

The fourth proportional to 365,931.45, 548,615.79 and 185,868.92 is: 278,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,931.45 : 548,615.79 = 185,868.92 : x
  2. Step 2: Convert to fraction form
    365,931.45/548,615.79 = 185,868.92/x
  3. Step 3: Cross multiply
    365,931.45x = 548,615.79 × 185,868.92
  4. Step 4: Simplify right side
    365,931.45x = 101,970,625,753.79
  5. Step 5: Solve for x
    x = 101,970,625,753.79/365,931.45
  6. Step 6: Final answer
    x = 278,660.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.