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Finding the Fourth Proportional to 1,795,710.76, 2,478,133.50 and 979,967.11

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Solution

The fourth proportional to 1,795,710.76, 2,478,133.50 and 979,967.11 is: 1,352,383.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,795,710.76 : 2,478,133.50 = 979,967.11 : x
  2. Step 2: Convert to fraction form
    1,795,710.76/2,478,133.50 = 979,967.11/x
  3. Step 3: Cross multiply
    1,795,710.76x = 2,478,133.50 × 979,967.11
  4. Step 4: Simplify right side
    1,795,710.76x = 2,428,489,324,189.19
  5. Step 5: Solve for x
    x = 2,428,489,324,189.19/1,795,710.76
  6. Step 6: Final answer
    x = 1,352,383.34

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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.