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Finding the Fourth Proportional to 568,090.30, 784,248.69 and 353,299.56

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Solution

The fourth proportional to 568,090.30, 784,248.69 and 353,299.56 is: 487,730.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,090.30 : 784,248.69 = 353,299.56 : x
  2. Step 2: Convert to fraction form
    568,090.30/784,248.69 = 353,299.56/x
  3. Step 3: Cross multiply
    568,090.30x = 784,248.69 × 353,299.56
  4. Step 4: Simplify right side
    568,090.30x = 277,074,717,107.58
  5. Step 5: Solve for x
    x = 277,074,717,107.58/568,090.30
  6. Step 6: Final answer
    x = 487,730.07

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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.