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Finding the Fourth Proportional to 484,208.55, 668,192.49 and 269,346.74

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Solution

The fourth proportional to 484,208.55, 668,192.49 and 269,346.74 is: 371,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,208.55 : 668,192.49 = 269,346.74 : x
  2. Step 2: Convert to fraction form
    484,208.55/668,192.49 = 269,346.74/x
  3. Step 3: Cross multiply
    484,208.55x = 668,192.49 × 269,346.74
  4. Step 4: Simplify right side
    484,208.55x = 179,975,465,533.02
  5. Step 5: Solve for x
    x = 179,975,465,533.02/484,208.55
  6. Step 6: Final answer
    x = 371,689.98

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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.