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Finding the Fourth Proportional to 914,796, 1,262,418.48 and 557,100

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Solution

The fourth proportional to 914,796, 1,262,418.48 and 557,100 is: 768,798

Step by Step Solution

  1. Step 1: Write the proportion equation
    914,796 : 1,262,418.48 = 557,100 : x
  2. Step 2: Convert to fraction form
    914,796/1,262,418.48 = 557,100/x
  3. Step 3: Cross multiply
    914,796x = 1,262,418.48 × 557,100
  4. Step 4: Simplify right side
    914,796x = 703,293,335,208
  5. Step 5: Solve for x
    x = 703,293,335,208/914,796
  6. Step 6: Final answer
    x = 768,798

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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.