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Finding the Fourth Proportional to 561,522.11, 841,805.80 and 245,743.07

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Solution

The fourth proportional to 561,522.11, 841,805.80 and 245,743.07 is: 368,405.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,522.11 : 841,805.80 = 245,743.07 : x
  2. Step 2: Convert to fraction form
    561,522.11/841,805.80 = 245,743.07/x
  3. Step 3: Cross multiply
    561,522.11x = 841,805.80 × 245,743.07
  4. Step 4: Simplify right side
    561,522.11x = 206,867,936,812.42
  5. Step 5: Solve for x
    x = 206,867,936,812.42/561,522.11
  6. Step 6: Final answer
    x = 368,405.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.