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Finding the Fourth Proportional to 849,346.97, 1,274,240.97 and 316,872

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Solution

The fourth proportional to 849,346.97, 1,274,240.97 and 316,872 is: 475,390.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,346.97 : 1,274,240.97 = 316,872 : x
  2. Step 2: Convert to fraction form
    849,346.97/1,274,240.97 = 316,872/x
  3. Step 3: Cross multiply
    849,346.97x = 1,274,240.97 × 316,872
  4. Step 4: Simplify right side
    849,346.97x = 403,771,284,645.84
  5. Step 5: Solve for x
    x = 403,771,284,645.84/849,346.97
  6. Step 6: Final answer
    x = 475,390.27

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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.