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Finding the Fourth Proportional to 569,761.20, 853,941.96 and 319,918.32

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Solution

The fourth proportional to 569,761.20, 853,941.96 and 319,918.32 is: 479,484.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,761.20 : 853,941.96 = 319,918.32 : x
  2. Step 2: Convert to fraction form
    569,761.20/853,941.96 = 319,918.32/x
  3. Step 3: Cross multiply
    569,761.20x = 853,941.96 × 319,918.32
  4. Step 4: Simplify right side
    569,761.20x = 273,191,677,220.71
  5. Step 5: Solve for x
    x = 273,191,677,220.71/569,761.20
  6. Step 6: Final answer
    x = 479,484.52

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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.