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Finding the Fourth Proportional to 526,809.20, 790,211.64 and 211,040.24

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Solution

The fourth proportional to 526,809.20, 790,211.64 and 211,040.24 is: 316,559.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,809.20 : 790,211.64 = 211,040.24 : x
  2. Step 2: Convert to fraction form
    526,809.20/790,211.64 = 211,040.24/x
  3. Step 3: Cross multiply
    526,809.20x = 790,211.64 × 211,040.24
  4. Step 4: Simplify right side
    526,809.20x = 166,766,454,156.39
  5. Step 5: Solve for x
    x = 166,766,454,156.39/526,809.20
  6. Step 6: Final answer
    x = 316,559.49

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Similar ratio
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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.