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Finding the Fourth Proportional to 885,476.88, 1,221,955.40 and 483,066

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Solution

The fourth proportional to 885,476.88, 1,221,955.40 and 483,066 is: 666,629.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,476.88 : 1,221,955.40 = 483,066 : x
  2. Step 2: Convert to fraction form
    885,476.88/1,221,955.40 = 483,066/x
  3. Step 3: Cross multiply
    885,476.88x = 1,221,955.40 × 483,066
  4. Step 4: Simplify right side
    885,476.88x = 590,285,107,256.40
  5. Step 5: Solve for x
    x = 590,285,107,256.40/885,476.88
  6. Step 6: Final answer
    x = 666,629.61

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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.