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Finding the Fourth Proportional to 549,196.80, 824,313.60 and 339,244.80

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Solution

The fourth proportional to 549,196.80, 824,313.60 and 339,244.80 is: 509,187.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,196.80 : 824,313.60 = 339,244.80 : x
  2. Step 2: Convert to fraction form
    549,196.80/824,313.60 = 339,244.80/x
  3. Step 3: Cross multiply
    549,196.80x = 824,313.60 × 339,244.80
  4. Step 4: Simplify right side
    549,196.80x = 279,644,102,369.28
  5. Step 5: Solve for x
    x = 279,644,102,369.28/549,196.80
  6. Step 6: Final answer
    x = 509,187.42

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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.