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Finding the Fourth Proportional to 533,632.64, 800,491.20 and 178,648.16

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Solution

The fourth proportional to 533,632.64, 800,491.20 and 178,648.16 is: 267,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,632.64 : 800,491.20 = 178,648.16 : x
  2. Step 2: Convert to fraction form
    533,632.64/800,491.20 = 178,648.16/x
  3. Step 3: Cross multiply
    533,632.64x = 800,491.20 × 178,648.16
  4. Step 4: Simplify right side
    533,632.64x = 143,006,279,976.19
  5. Step 5: Solve for x
    x = 143,006,279,976.19/533,632.64
  6. Step 6: Final answer
    x = 267,986.38

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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.