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Finding the Fourth Proportional to 891,697.13, 1,336,758.35 and 682,270.01

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Solution

The fourth proportional to 891,697.13, 1,336,758.35 and 682,270.01 is: 1,022,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,697.13 : 1,336,758.35 = 682,270.01 : x
  2. Step 2: Convert to fraction form
    891,697.13/1,336,758.35 = 682,270.01/x
  3. Step 3: Cross multiply
    891,697.13x = 1,336,758.35 × 682,270.01
  4. Step 4: Simplify right side
    891,697.13x = 912,030,122,726.94
  5. Step 5: Solve for x
    x = 912,030,122,726.94/891,697.13
  6. Step 6: Final answer
    x = 1,022,802.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.