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Finding the Fourth Proportional to 489,040.20, 732,869.10 and 301,494.60

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Solution

The fourth proportional to 489,040.20, 732,869.10 and 301,494.60 is: 451,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,040.20 : 732,869.10 = 301,494.60 : x
  2. Step 2: Convert to fraction form
    489,040.20/732,869.10 = 301,494.60/x
  3. Step 3: Cross multiply
    489,040.20x = 732,869.10 × 301,494.60
  4. Step 4: Simplify right side
    489,040.20x = 220,956,076,156.86
  5. Step 5: Solve for x
    x = 220,956,076,156.86/489,040.20
  6. Step 6: Final answer
    x = 451,815.77

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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.