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Finding the Fourth Proportional to 575,356.54, 793,997.39 and 317,242.75

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Solution

The fourth proportional to 575,356.54, 793,997.39 and 317,242.75 is: 437,797.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,356.54 : 793,997.39 = 317,242.75 : x
  2. Step 2: Convert to fraction form
    575,356.54/793,997.39 = 317,242.75/x
  3. Step 3: Cross multiply
    575,356.54x = 793,997.39 × 317,242.75
  4. Step 4: Simplify right side
    575,356.54x = 251,889,913,910.21
  5. Step 5: Solve for x
    x = 251,889,913,910.21/575,356.54
  6. Step 6: Final answer
    x = 437,797.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.