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Finding the Fourth Proportional to 503,774.40, 755,485.20 and 148,694.40

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Solution

The fourth proportional to 503,774.40, 755,485.20 and 148,694.40 is: 222,989.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,774.40 : 755,485.20 = 148,694.40 : x
  2. Step 2: Convert to fraction form
    503,774.40/755,485.20 = 148,694.40/x
  3. Step 3: Cross multiply
    503,774.40x = 755,485.20 × 148,694.40
  4. Step 4: Simplify right side
    503,774.40x = 112,336,418,522.88
  5. Step 5: Solve for x
    x = 112,336,418,522.88/503,774.40
  6. Step 6: Final answer
    x = 222,989.53

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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.