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Finding the Fourth Proportional to 914,671, 1,262,245.98 and 512,263

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Solution

The fourth proportional to 914,671, 1,262,245.98 and 512,263 is: 706,922.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,671 : 1,262,245.98 = 512,263 : x
  2. Step 2: Convert to fraction form
    914,671/1,262,245.98 = 512,263/x
  3. Step 3: Cross multiply
    914,671x = 1,262,245.98 × 512,263
  4. Step 4: Simplify right side
    914,671x = 646,601,912,452.74
  5. Step 5: Solve for x
    x = 646,601,912,452.74/914,671
  6. Step 6: Final answer
    x = 706,922.94

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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.