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Finding the Fourth Proportional to 717,033.14, 989,563.57 and 411,137.98

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Solution

The fourth proportional to 717,033.14, 989,563.57 and 411,137.98 is: 567,403.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,033.14 : 989,563.57 = 411,137.98 : x
  2. Step 2: Convert to fraction form
    717,033.14/989,563.57 = 411,137.98/x
  3. Step 3: Cross multiply
    717,033.14x = 989,563.57 × 411,137.98
  4. Step 4: Simplify right side
    717,033.14x = 406,847,160,247.88
  5. Step 5: Solve for x
    x = 406,847,160,247.88/717,033.14
  6. Step 6: Final answer
    x = 567,403.57

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Double scale
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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.