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Finding the Fourth Proportional to 276,625.40, 414,938.10 and 171,649.40

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Solution

The fourth proportional to 276,625.40, 414,938.10 and 171,649.40 is: 257,474.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,625.40 : 414,938.10 = 171,649.40 : x
  2. Step 2: Convert to fraction form
    276,625.40/414,938.10 = 171,649.40/x
  3. Step 3: Cross multiply
    276,625.40x = 414,938.10 × 171,649.40
  4. Step 4: Simplify right side
    276,625.40x = 71,223,875,902.14
  5. Step 5: Solve for x
    x = 71,223,875,902.14/276,625.40
  6. Step 6: Final answer
    x = 257,474.10

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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.