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Finding the Fourth Proportional to 365,591.76, 548,390.52 and 128,880.24

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Solution

The fourth proportional to 365,591.76, 548,390.52 and 128,880.24 is: 193,321.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,591.76 : 548,390.52 = 128,880.24 : x
  2. Step 2: Convert to fraction form
    365,591.76/548,390.52 = 128,880.24/x
  3. Step 3: Cross multiply
    365,591.76x = 548,390.52 × 128,880.24
  4. Step 4: Simplify right side
    365,591.76x = 70,676,701,831.32
  5. Step 5: Solve for x
    x = 70,676,701,831.32/365,591.76
  6. Step 6: Final answer
    x = 193,321.38

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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.