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Finding the Fourth Proportional to 1,279,959.03, 1,766,309.70 and 706,986.90

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Solution

The fourth proportional to 1,279,959.03, 1,766,309.70 and 706,986.90 is: 975,623.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,959.03 : 1,766,309.70 = 706,986.90 : x
  2. Step 2: Convert to fraction form
    1,279,959.03/1,766,309.70 = 706,986.90/x
  3. Step 3: Cross multiply
    1,279,959.03x = 1,766,309.70 × 706,986.90
  4. Step 4: Simplify right side
    1,279,959.03x = 1,248,757,819,242.93
  5. Step 5: Solve for x
    x = 1,248,757,819,242.93/1,279,959.03
  6. Step 6: Final answer
    x = 975,623.27

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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.