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Finding the Fourth Proportional to 480,735.60, 663,388.20 and 262,901.28

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Solution

The fourth proportional to 480,735.60, 663,388.20 and 262,901.28 is: 362,789.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,735.60 : 663,388.20 = 262,901.28 : x
  2. Step 2: Convert to fraction form
    480,735.60/663,388.20 = 262,901.28/x
  3. Step 3: Cross multiply
    480,735.60x = 663,388.20 × 262,901.28
  4. Step 4: Simplify right side
    480,735.60x = 174,405,606,916.90
  5. Step 5: Solve for x
    x = 174,405,606,916.90/480,735.60
  6. Step 6: Final answer
    x = 362,789.04

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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.