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Finding the Fourth Proportional to 575,279.69, 793,891.10 and 317,165.81

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Solution

The fourth proportional to 575,279.69, 793,891.10 and 317,165.81 is: 437,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,279.69 : 793,891.10 = 317,165.81 : x
  2. Step 2: Convert to fraction form
    575,279.69/793,891.10 = 317,165.81/x
  3. Step 3: Cross multiply
    575,279.69x = 793,891.10 × 317,165.81
  4. Step 4: Simplify right side
    575,279.69x = 251,795,110,606.75
  5. Step 5: Solve for x
    x = 251,795,110,606.75/575,279.69
  6. Step 6: Final answer
    x = 437,691.64

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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.