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Finding the Fourth Proportional to 695,303.76, 959,571.60 and 389,364.56

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Solution

The fourth proportional to 695,303.76, 959,571.60 and 389,364.56 is: 537,352.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,303.76 : 959,571.60 = 389,364.56 : x
  2. Step 2: Convert to fraction form
    695,303.76/959,571.60 = 389,364.56/x
  3. Step 3: Cross multiply
    695,303.76x = 959,571.60 × 389,364.56
  4. Step 4: Simplify right side
    695,303.76x = 373,623,173,822.50
  5. Step 5: Solve for x
    x = 373,623,173,822.50/695,303.76
  6. Step 6: Final answer
    x = 537,352.44

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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.