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Finding the Fourth Proportional to 460,185.60, 690,376.96 and 260,600.32

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Solution

The fourth proportional to 460,185.60, 690,376.96 and 260,600.32 is: 390,956.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,185.60 : 690,376.96 = 260,600.32 : x
  2. Step 2: Convert to fraction form
    460,185.60/690,376.96 = 260,600.32/x
  3. Step 3: Cross multiply
    460,185.60x = 690,376.96 × 260,600.32
  4. Step 4: Simplify right side
    460,185.60x = 179,912,456,696.63
  5. Step 5: Solve for x
    x = 179,912,456,696.63/460,185.60
  6. Step 6: Final answer
    x = 390,956.29

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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.