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Finding the Fourth Proportional to 482,718.64, 666,141.72 and 267,856.96

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Solution

The fourth proportional to 482,718.64, 666,141.72 and 267,856.96 is: 369,637.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,718.64 : 666,141.72 = 267,856.96 : x
  2. Step 2: Convert to fraction form
    482,718.64/666,141.72 = 267,856.96/x
  3. Step 3: Cross multiply
    482,718.64x = 666,141.72 × 267,856.96
  4. Step 4: Simplify right side
    482,718.64x = 178,430,696,048.37
  5. Step 5: Solve for x
    x = 178,430,696,048.37/482,718.64
  6. Step 6: Final answer
    x = 369,637.05

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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.