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Finding the Fourth Proportional to 526,874.40, 789,404.40 and 245,815.20

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Solution

The fourth proportional to 526,874.40, 789,404.40 and 245,815.20 is: 368,299.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,874.40 : 789,404.40 = 245,815.20 : x
  2. Step 2: Convert to fraction form
    526,874.40/789,404.40 = 245,815.20/x
  3. Step 3: Cross multiply
    526,874.40x = 789,404.40 × 245,815.20
  4. Step 4: Simplify right side
    526,874.40x = 194,047,600,466.88
  5. Step 5: Solve for x
    x = 194,047,600,466.88/526,874.40
  6. Step 6: Final answer
    x = 368,299.54

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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.