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Finding the Fourth Proportional to 526,155.40, 789,349.98 and 245,519.56

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Solution

The fourth proportional to 526,155.40, 789,349.98 and 245,519.56 is: 368,333.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,155.40 : 789,349.98 = 245,519.56 : x
  2. Step 2: Convert to fraction form
    526,155.40/789,349.98 = 245,519.56/x
  3. Step 3: Cross multiply
    526,155.40x = 789,349.98 × 245,519.56
  4. Step 4: Simplify right side
    526,155.40x = 193,800,859,775.61
  5. Step 5: Solve for x
    x = 193,800,859,775.61/526,155.40
  6. Step 6: Final answer
    x = 368,333.88

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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.