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Finding the Fourth Proportional to 1,291,177, 1,937,076.54 and 404,713

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Solution

The fourth proportional to 1,291,177, 1,937,076.54 and 404,713 is: 607,166.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,177 : 1,937,076.54 = 404,713 : x
  2. Step 2: Convert to fraction form
    1,291,177/1,937,076.54 = 404,713/x
  3. Step 3: Cross multiply
    1,291,177x = 1,937,076.54 × 404,713
  4. Step 4: Simplify right side
    1,291,177x = 783,960,057,733.02
  5. Step 5: Solve for x
    x = 783,960,057,733.02/1,291,177
  6. Step 6: Final answer
    x = 607,166.99

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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.