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Finding the Fourth Proportional to 873,662.54, 1,206,026.28 and 587,348.66

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Solution

The fourth proportional to 873,662.54, 1,206,026.28 and 587,348.66 is: 810,791.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,662.54 : 1,206,026.28 = 587,348.66 : x
  2. Step 2: Convert to fraction form
    873,662.54/1,206,026.28 = 587,348.66/x
  3. Step 3: Cross multiply
    873,662.54x = 1,206,026.28 × 587,348.66
  4. Step 4: Simplify right side
    873,662.54x = 708,357,919,482.79
  5. Step 5: Solve for x
    x = 708,357,919,482.79/873,662.54
  6. Step 6: Final answer
    x = 810,791.22

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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.