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Finding the Fourth Proportional to 397,221.40, 595,313.70 and 183,964.60

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Solution

The fourth proportional to 397,221.40, 595,313.70 and 183,964.60 is: 275,706.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,221.40 : 595,313.70 = 183,964.60 : x
  2. Step 2: Convert to fraction form
    397,221.40/595,313.70 = 183,964.60/x
  3. Step 3: Cross multiply
    397,221.40x = 595,313.70 × 183,964.60
  4. Step 4: Simplify right side
    397,221.40x = 109,516,646,695.02
  5. Step 5: Solve for x
    x = 109,516,646,695.02/397,221.40
  6. Step 6: Final answer
    x = 275,706.81

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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.