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Finding the Fourth Proportional to 503,427.42, 754,961.31 and 166,405.86

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Solution

The fourth proportional to 503,427.42, 754,961.31 and 166,405.86 is: 249,549.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,427.42 : 754,961.31 = 166,405.86 : x
  2. Step 2: Convert to fraction form
    503,427.42/754,961.31 = 166,405.86/x
  3. Step 3: Cross multiply
    503,427.42x = 754,961.31 × 166,405.86
  4. Step 4: Simplify right side
    503,427.42x = 125,629,986,057.28
  5. Step 5: Solve for x
    x = 125,629,986,057.28/503,427.42
  6. Step 6: Final answer
    x = 249,549.35

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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.