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Finding the Fourth Proportional to 591,269.20, 886,903.80 and 354,878.80

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Solution

The fourth proportional to 591,269.20, 886,903.80 and 354,878.80 is: 532,318.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,269.20 : 886,903.80 = 354,878.80 : x
  2. Step 2: Convert to fraction form
    591,269.20/886,903.80 = 354,878.80/x
  3. Step 3: Cross multiply
    591,269.20x = 886,903.80 × 354,878.80
  4. Step 4: Simplify right side
    591,269.20x = 314,743,356,259.44
  5. Step 5: Solve for x
    x = 314,743,356,259.44/591,269.20
  6. Step 6: Final answer
    x = 532,318.20

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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.