Home / 526,915.20-790,761.60-211,598.40

Finding the Fourth Proportional to 526,915.20, 790,761.60 and 211,598.40

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Solution

The fourth proportional to 526,915.20, 790,761.60 and 211,598.40 is: 317,553.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,915.20 : 790,761.60 = 211,598.40 : x
  2. Step 2: Convert to fraction form
    526,915.20/790,761.60 = 211,598.40/x
  3. Step 3: Cross multiply
    526,915.20x = 790,761.60 × 211,598.40
  4. Step 4: Simplify right side
    526,915.20x = 167,323,889,341.44
  5. Step 5: Solve for x
    x = 167,323,889,341.44/526,915.20
  6. Step 6: Final answer
    x = 317,553.73

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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.