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Finding the Fourth Proportional to 526,156.40, 789,351.48 and 245,520.56

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Solution

The fourth proportional to 526,156.40, 789,351.48 and 245,520.56 is: 368,335.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,156.40 : 789,351.48 = 245,520.56 : x
  2. Step 2: Convert to fraction form
    526,156.40/789,351.48 = 245,520.56/x
  3. Step 3: Cross multiply
    526,156.40x = 789,351.48 × 245,520.56
  4. Step 4: Simplify right side
    526,156.40x = 193,802,017,406.43
  5. Step 5: Solve for x
    x = 193,802,017,406.43/526,156.40
  6. Step 6: Final answer
    x = 368,335.38

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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.