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Finding the Fourth Proportional to 1,417,554, 2,126,331 and 366,930

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Solution

The fourth proportional to 1,417,554, 2,126,331 and 366,930 is: 550,395

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,554 : 2,126,331 = 366,930 : x
  2. Step 2: Convert to fraction form
    1,417,554/2,126,331 = 366,930/x
  3. Step 3: Cross multiply
    1,417,554x = 2,126,331 × 366,930
  4. Step 4: Simplify right side
    1,417,554x = 780,214,633,830
  5. Step 5: Solve for x
    x = 780,214,633,830/1,417,554
  6. Step 6: Final answer
    x = 550,395

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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.