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Finding the Fourth Proportional to 423,577.44, 635,366.39 and 265,916.61

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Solution

The fourth proportional to 423,577.44, 635,366.39 and 265,916.61 is: 398,875.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,577.44 : 635,366.39 = 265,916.61 : x
  2. Step 2: Convert to fraction form
    423,577.44/635,366.39 = 265,916.61/x
  3. Step 3: Cross multiply
    423,577.44x = 635,366.39 × 265,916.61
  4. Step 4: Simplify right side
    423,577.44x = 168,954,475,207.16
  5. Step 5: Solve for x
    x = 168,954,475,207.16/423,577.44
  6. Step 6: Final answer
    x = 398,875.06

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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.