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Finding the Fourth Proportional to 577,753.48, 866,453.64 and 203,689

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Solution

The fourth proportional to 577,753.48, 866,453.64 and 203,689 is: 305,471.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,753.48 : 866,453.64 = 203,689 : x
  2. Step 2: Convert to fraction form
    577,753.48/866,453.64 = 203,689/x
  3. Step 3: Cross multiply
    577,753.48x = 866,453.64 × 203,689
  4. Step 4: Simplify right side
    577,753.48x = 176,487,075,477.96
  5. Step 5: Solve for x
    x = 176,487,075,477.96/577,753.48
  6. Step 6: Final answer
    x = 305,471.25

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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.