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Finding the Fourth Proportional to 551,057.60, 825,009.60 and 339,269.60

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Solution

The fourth proportional to 551,057.60, 825,009.60 and 339,269.60 is: 507,933.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,057.60 : 825,009.60 = 339,269.60 : x
  2. Step 2: Convert to fraction form
    551,057.60/825,009.60 = 339,269.60/x
  3. Step 3: Cross multiply
    551,057.60x = 825,009.60 × 339,269.60
  4. Step 4: Simplify right side
    551,057.60x = 279,900,676,988.16
  5. Step 5: Solve for x
    x = 279,900,676,988.16/551,057.60
  6. Step 6: Final answer
    x = 507,933.61

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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.