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Finding the Fourth Proportional to 484,491.83, 668,592.21 and 269,631.83

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Solution

The fourth proportional to 484,491.83, 668,592.21 and 269,631.83 is: 372,088.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,491.83 : 668,592.21 = 269,631.83 : x
  2. Step 2: Convert to fraction form
    484,491.83/668,592.21 = 269,631.83/x
  3. Step 3: Cross multiply
    484,491.83x = 668,592.21 × 269,631.83
  4. Step 4: Simplify right side
    484,491.83x = 180,273,742,777.53
  5. Step 5: Solve for x
    x = 180,273,742,777.53/484,491.83
  6. Step 6: Final answer
    x = 372,088.31

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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.