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Finding the Fourth Proportional to 550,140.60, 824,433.30 and 339,151.80

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Solution

The fourth proportional to 550,140.60, 824,433.30 and 339,151.80 is: 508,248.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,140.60 : 824,433.30 = 339,151.80 : x
  2. Step 2: Convert to fraction form
    550,140.60/824,433.30 = 339,151.80/x
  3. Step 3: Cross multiply
    550,140.60x = 824,433.30 × 339,151.80
  4. Step 4: Simplify right side
    550,140.60x = 279,608,037,674.94
  5. Step 5: Solve for x
    x = 279,608,037,674.94/550,140.60
  6. Step 6: Final answer
    x = 508,248.32

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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.