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Finding the Fourth Proportional to 326,436,000.40, 489,654,000.60 and 326,436,000.40

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Solution

The fourth proportional to 326,436,000.40, 489,654,000.60 and 326,436,000.40 is: 489,654,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,436,000.40 : 489,654,000.60 = 326,436,000.40 : x
  2. Step 2: Convert to fraction form
    326,436,000.40/489,654,000.60 = 326,436,000.40/x
  3. Step 3: Cross multiply
    326,436,000.40x = 489,654,000.60 × 326,436,000.40
  4. Step 4: Simplify right side
    326,436,000.40x = 159,840,693,535,723,200
  5. Step 5: Solve for x
    x = 159,840,693,535,723,200/326,436,000.40
  6. Step 6: Final answer
    x = 489,654,000.60

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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.