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Finding the Fourth Proportional to 1,203,822.21, 1,661,264.06 and 659,948.12

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Solution

The fourth proportional to 1,203,822.21, 1,661,264.06 and 659,948.12 is: 910,722.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,822.21 : 1,661,264.06 = 659,948.12 : x
  2. Step 2: Convert to fraction form
    1,203,822.21/1,661,264.06 = 659,948.12/x
  3. Step 3: Cross multiply
    1,203,822.21x = 1,661,264.06 × 659,948.12
  4. Step 4: Simplify right side
    1,203,822.21x = 1,096,348,081,614.51
  5. Step 5: Solve for x
    x = 1,096,348,081,614.51/1,203,822.21
  6. Step 6: Final answer
    x = 910,722.59

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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.