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Finding the Fourth Proportional to 323,718.60, 485,577.90 and 166,254.60

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Solution

The fourth proportional to 323,718.60, 485,577.90 and 166,254.60 is: 249,381.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,718.60 : 485,577.90 = 166,254.60 : x
  2. Step 2: Convert to fraction form
    323,718.60/485,577.90 = 166,254.60/x
  3. Step 3: Cross multiply
    323,718.60x = 485,577.90 × 166,254.60
  4. Step 4: Simplify right side
    323,718.60x = 80,729,559,533.34
  5. Step 5: Solve for x
    x = 80,729,559,533.34/323,718.60
  6. Step 6: Final answer
    x = 249,381.90

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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.