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Finding the Fourth Proportional to 307,453.49, 461,320.35 and 157,798.86

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Solution

The fourth proportional to 307,453.49, 461,320.35 and 157,798.86 is: 236,770.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,453.49 : 461,320.35 = 157,798.86 : x
  2. Step 2: Convert to fraction form
    307,453.49/461,320.35 = 157,798.86/x
  3. Step 3: Cross multiply
    307,453.49x = 461,320.35 × 157,798.86
  4. Step 4: Simplify right side
    307,453.49x = 72,795,825,324.80
  5. Step 5: Solve for x
    x = 72,795,825,324.80/307,453.49
  6. Step 6: Final answer
    x = 236,770.20

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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.