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Finding the Fourth Proportional to 504,440.40, 696,106.56 and 274,992.72

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Solution

The fourth proportional to 504,440.40, 696,106.56 and 274,992.72 is: 379,478.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,440.40 : 696,106.56 = 274,992.72 : x
  2. Step 2: Convert to fraction form
    504,440.40/696,106.56 = 274,992.72/x
  3. Step 3: Cross multiply
    504,440.40x = 696,106.56 × 274,992.72
  4. Step 4: Simplify right side
    504,440.40x = 191,424,236,344.24
  5. Step 5: Solve for x
    x = 191,424,236,344.24/504,440.40
  6. Step 6: Final answer
    x = 379,478.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.