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Finding the Fourth Proportional to 539,539.92, 744,619.71 and 463,311.37

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Solution

The fourth proportional to 539,539.92, 744,619.71 and 463,311.37 is: 639,416.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,539.92 : 744,619.71 = 463,311.37 : x
  2. Step 2: Convert to fraction form
    539,539.92/744,619.71 = 463,311.37/x
  3. Step 3: Cross multiply
    539,539.92x = 744,619.71 × 463,311.37
  4. Step 4: Simplify right side
    539,539.92x = 344,990,777,969.10
  5. Step 5: Solve for x
    x = 344,990,777,969.10/539,539.92
  6. Step 6: Final answer
    x = 639,416.59

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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.