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Finding the Fourth Proportional to 326,098.30, 489,147.45 and 267,000.70

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Solution

The fourth proportional to 326,098.30, 489,147.45 and 267,000.70 is: 400,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,098.30 : 489,147.45 = 267,000.70 : x
  2. Step 2: Convert to fraction form
    326,098.30/489,147.45 = 267,000.70/x
  3. Step 3: Cross multiply
    326,098.30x = 489,147.45 × 267,000.70
  4. Step 4: Simplify right side
    326,098.30x = 130,602,711,553.22
  5. Step 5: Solve for x
    x = 130,602,711,553.22/326,098.30
  6. Step 6: Final answer
    x = 400,501.05

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Similar ratio
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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.