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Finding the Fourth Proportional to 561,420.44, 842,134.30 and 224,489.40

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Solution

The fourth proportional to 561,420.44, 842,134.30 and 224,489.40 is: 336,735.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,420.44 : 842,134.30 = 224,489.40 : x
  2. Step 2: Convert to fraction form
    561,420.44/842,134.30 = 224,489.40/x
  3. Step 3: Cross multiply
    561,420.44x = 842,134.30 × 224,489.40
  4. Step 4: Simplify right side
    561,420.44x = 189,050,223,726.42
  5. Step 5: Solve for x
    x = 189,050,223,726.42/561,420.44
  6. Step 6: Final answer
    x = 336,735.56

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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.