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Finding the Fourth Proportional to 526,984.47, 790,230.60 and 189,980.73

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Solution

The fourth proportional to 526,984.47, 790,230.60 and 189,980.73 is: 284,882.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,984.47 : 790,230.60 = 189,980.73 : x
  2. Step 2: Convert to fraction form
    526,984.47/790,230.60 = 189,980.73/x
  3. Step 3: Cross multiply
    526,984.47x = 790,230.60 × 189,980.73
  4. Step 4: Simplify right side
    526,984.47x = 150,128,586,256.34
  5. Step 5: Solve for x
    x = 150,128,586,256.34/526,984.47
  6. Step 6: Final answer
    x = 284,882.37

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Double scale
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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.