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Finding the Fourth Proportional to 935,634.91, 1,290,859.03 and 763,254.89

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Solution

The fourth proportional to 935,634.91, 1,290,859.03 and 763,254.89 is: 1,053,033.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,634.91 : 1,290,859.03 = 763,254.89 : x
  2. Step 2: Convert to fraction form
    935,634.91/1,290,859.03 = 763,254.89/x
  3. Step 3: Cross multiply
    935,634.91x = 1,290,859.03 × 763,254.89
  4. Step 4: Simplify right side
    935,634.91x = 985,254,468,435.31
  5. Step 5: Solve for x
    x = 985,254,468,435.31/935,634.91
  6. Step 6: Final answer
    x = 1,053,033.03

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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.