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Finding the Fourth Proportional to 460,193.60, 690,388.96 and 260,608.32

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Solution

The fourth proportional to 460,193.60, 690,388.96 and 260,608.32 is: 390,968.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,193.60 : 690,388.96 = 260,608.32 : x
  2. Step 2: Convert to fraction form
    460,193.60/690,388.96 = 260,608.32/x
  3. Step 3: Cross multiply
    460,193.60x = 690,388.96 × 260,608.32
  4. Step 4: Simplify right side
    460,193.60x = 179,921,107,012.15
  5. Step 5: Solve for x
    x = 179,921,107,012.15/460,193.60
  6. Step 6: Final answer
    x = 390,968.29

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1.5x scale

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.