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Finding the Fourth Proportional to 568,123.20, 784,009.26 and 313,474.32

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Solution

The fourth proportional to 568,123.20, 784,009.26 and 313,474.32 is: 432,594.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,123.20 : 784,009.26 = 313,474.32 : x
  2. Step 2: Convert to fraction form
    568,123.20/784,009.26 = 313,474.32/x
  3. Step 3: Cross multiply
    568,123.20x = 784,009.26 × 313,474.32
  4. Step 4: Simplify right side
    568,123.20x = 245,766,769,652.20
  5. Step 5: Solve for x
    x = 245,766,769,652.20/568,123.20
  6. Step 6: Final answer
    x = 432,594.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.