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Finding the Fourth Proportional to 891,697.12, 1,336,758.34 and 682,270

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Solution

The fourth proportional to 891,697.12, 1,336,758.34 and 682,270 is: 1,022,802.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,697.12 : 1,336,758.34 = 682,270 : x
  2. Step 2: Convert to fraction form
    891,697.12/1,336,758.34 = 682,270/x
  3. Step 3: Cross multiply
    891,697.12x = 1,336,758.34 × 682,270
  4. Step 4: Simplify right side
    891,697.12x = 912,030,112,631.80
  5. Step 5: Solve for x
    x = 912,030,112,631.80/891,697.12
  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.