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Finding the Fourth Proportional to 569,643.20, 853,773.60 and 253,764.80

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Solution

The fourth proportional to 569,643.20, 853,773.60 and 253,764.80 is: 380,339.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,643.20 : 853,773.60 = 253,764.80 : x
  2. Step 2: Convert to fraction form
    569,643.20/853,773.60 = 253,764.80/x
  3. Step 3: Cross multiply
    569,643.20x = 853,773.60 × 253,764.80
  4. Step 4: Simplify right side
    569,643.20x = 216,657,686,849.28
  5. Step 5: Solve for x
    x = 216,657,686,849.28/569,643.20
  6. Step 6: Final answer
    x = 380,339.28

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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.