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Finding the Fourth Proportional to 324,728.80, 487,676.40 and 236,082.40

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Solution

The fourth proportional to 324,728.80, 487,676.40 and 236,082.40 is: 354,547.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,728.80 : 487,676.40 = 236,082.40 : x
  2. Step 2: Convert to fraction form
    324,728.80/487,676.40 = 236,082.40/x
  3. Step 3: Cross multiply
    324,728.80x = 487,676.40 × 236,082.40
  4. Step 4: Simplify right side
    324,728.80x = 115,131,814,935.36
  5. Step 5: Solve for x
    x = 115,131,814,935.36/324,728.80
  6. Step 6: Final answer
    x = 354,547.59

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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.