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Finding the Fourth Proportional to 541,397.80, 811,601.34 and 208,723.24

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Solution

The fourth proportional to 541,397.80, 811,601.34 and 208,723.24 is: 312,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,397.80 : 811,601.34 = 208,723.24 : x
  2. Step 2: Convert to fraction form
    541,397.80/811,601.34 = 208,723.24/x
  3. Step 3: Cross multiply
    541,397.80x = 811,601.34 × 208,723.24
  4. Step 4: Simplify right side
    541,397.80x = 169,400,061,273.14
  5. Step 5: Solve for x
    x = 169,400,061,273.14/541,397.80
  6. Step 6: Final answer
    x = 312,893.89

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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.