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Finding the Fourth Proportional to 484,528.46, 668,648.57 and 269,663.40

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Solution

The fourth proportional to 484,528.46, 668,648.57 and 269,663.40 is: 372,135.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,528.46 : 668,648.57 = 269,663.40 : x
  2. Step 2: Convert to fraction form
    484,528.46/668,648.57 = 269,663.40/x
  3. Step 3: Cross multiply
    484,528.46x = 668,648.57 × 269,663.40
  4. Step 4: Simplify right side
    484,528.46x = 180,310,045,443.02
  5. Step 5: Solve for x
    x = 180,310,045,443.02/484,528.46
  6. Step 6: Final answer
    x = 372,135.10

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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.