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Finding the Fourth Proportional to 506,438.44, 698,856.78 and 276,950.44

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Solution

The fourth proportional to 506,438.44, 698,856.78 and 276,950.44 is: 382,176.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    506,438.44 : 698,856.78 = 276,950.44 : x
  2. Step 2: Convert to fraction form
    506,438.44/698,856.78 = 276,950.44/x
  3. Step 3: Cross multiply
    506,438.44x = 698,856.78 × 276,950.44
  4. Step 4: Simplify right side
    506,438.44x = 193,548,692,717.98
  5. Step 5: Solve for x
    x = 193,548,692,717.98/506,438.44
  6. Step 6: Final answer
    x = 382,176.15

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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.