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Finding the Fourth Proportional to 609,911.10, 841,974.75 and 406,082.70

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Solution

The fourth proportional to 609,911.10, 841,974.75 and 406,082.70 is: 560,592.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,911.10 : 841,974.75 = 406,082.70 : x
  2. Step 2: Convert to fraction form
    609,911.10/841,974.75 = 406,082.70/x
  3. Step 3: Cross multiply
    609,911.10x = 841,974.75 × 406,082.70
  4. Step 4: Simplify right side
    609,911.10x = 341,911,379,811.83
  5. Step 5: Solve for x
    x = 341,911,379,811.83/609,911.10
  6. Step 6: Final answer
    x = 560,592.16

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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.