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Finding the Fourth Proportional to 568,017.50, 784,125.06 and 490,183.52

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Solution

The fourth proportional to 568,017.50, 784,125.06 and 490,183.52 is: 676,678.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    568,017.50 : 784,125.06 = 490,183.52 : x
  2. Step 2: Convert to fraction form
    568,017.50/784,125.06 = 490,183.52/x
  3. Step 3: Cross multiply
    568,017.50x = 784,125.06 × 490,183.52
  4. Step 4: Simplify right side
    568,017.50x = 384,365,176,272.20
  5. Step 5: Solve for x
    x = 384,365,176,272.20/568,017.50
  6. Step 6: Final answer
    x = 676,678.41

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Double scale
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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.