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Finding the Fourth Proportional to 717,767.96, 990,542.21 and 411,900.29

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Solution

The fourth proportional to 717,767.96, 990,542.21 and 411,900.29 is: 568,435.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,767.96 : 990,542.21 = 411,900.29 : x
  2. Step 2: Convert to fraction form
    717,767.96/990,542.21 = 411,900.29/x
  3. Step 3: Cross multiply
    717,767.96x = 990,542.21 × 411,900.29
  4. Step 4: Simplify right side
    717,767.96x = 408,004,616,544.03
  5. Step 5: Solve for x
    x = 408,004,616,544.03/717,767.96
  6. Step 6: Final answer
    x = 568,435.26

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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.