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Finding the Fourth Proportional to 503,765.40, 755,471.70 and 148,685.40

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Solution

The fourth proportional to 503,765.40, 755,471.70 and 148,685.40 is: 222,976.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,765.40 : 755,471.70 = 148,685.40 : x
  2. Step 2: Convert to fraction form
    503,765.40/755,471.70 = 148,685.40/x
  3. Step 3: Cross multiply
    503,765.40x = 755,471.70 × 148,685.40
  4. Step 4: Simplify right side
    503,765.40x = 112,327,611,903.18
  5. Step 5: Solve for x
    x = 112,327,611,903.18/503,765.40
  6. Step 6: Final answer
    x = 222,976.04

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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.