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Finding the Fourth Proportional to 885,371.88, 1,221,810.66 and 482,961

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Solution

The fourth proportional to 885,371.88, 1,221,810.66 and 482,961 is: 666,484.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,371.88 : 1,221,810.66 = 482,961 : x
  2. Step 2: Convert to fraction form
    885,371.88/1,221,810.66 = 482,961/x
  3. Step 3: Cross multiply
    885,371.88x = 1,221,810.66 × 482,961
  4. Step 4: Simplify right side
    885,371.88x = 590,086,898,164.26
  5. Step 5: Solve for x
    x = 590,086,898,164.26/885,371.88
  6. Step 6: Final answer
    x = 666,484.80

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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.