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Finding the Fourth Proportional to 297,891.46, 411,089.42 and 161,925.40

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Solution

The fourth proportional to 297,891.46, 411,089.42 and 161,925.40 is: 223,456.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,891.46 : 411,089.42 = 161,925.40 : x
  2. Step 2: Convert to fraction form
    297,891.46/411,089.42 = 161,925.40/x
  3. Step 3: Cross multiply
    297,891.46x = 411,089.42 × 161,925.40
  4. Step 4: Simplify right side
    297,891.46x = 66,565,818,769.27
  5. Step 5: Solve for x
    x = 66,565,818,769.27/297,891.46
  6. Step 6: Final answer
    x = 223,456.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.