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Finding the Fourth Proportional to 503,744.40, 755,440.20 and 148,664.40

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Solution

The fourth proportional to 503,744.40, 755,440.20 and 148,664.40 is: 222,944.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,744.40 : 755,440.20 = 148,664.40 : x
  2. Step 2: Convert to fraction form
    503,744.40/755,440.20 = 148,664.40/x
  3. Step 3: Cross multiply
    503,744.40x = 755,440.20 × 148,664.40
  4. Step 4: Simplify right side
    503,744.40x = 112,307,064,068.88
  5. Step 5: Solve for x
    x = 112,307,064,068.88/503,744.40
  6. Step 6: Final answer
    x = 222,944.54

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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.