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Finding the Fourth Proportional to 433,149.32, 649,816.63 and 129,567.26

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Solution

The fourth proportional to 433,149.32, 649,816.63 and 129,567.26 is: 194,378.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,149.32 : 649,816.63 = 129,567.26 : x
  2. Step 2: Convert to fraction form
    433,149.32/649,816.63 = 129,567.26/x
  3. Step 3: Cross multiply
    433,149.32x = 649,816.63 × 129,567.26
  4. Step 4: Simplify right side
    433,149.32x = 84,194,961,552.16
  5. Step 5: Solve for x
    x = 84,194,961,552.16/433,149.32
  6. Step 6: Final answer
    x = 194,378.61

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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.