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Finding the Fourth Proportional to 1,414,132, 1,951,502.48 and 778,228

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Solution

The fourth proportional to 1,414,132, 1,951,502.48 and 778,228 is: 1,073,954.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,414,132 : 1,951,502.48 = 778,228 : x
  2. Step 2: Convert to fraction form
    1,414,132/1,951,502.48 = 778,228/x
  3. Step 3: Cross multiply
    1,414,132x = 1,951,502.48 × 778,228
  4. Step 4: Simplify right side
    1,414,132x = 1,518,713,872,005.44
  5. Step 5: Solve for x
    x = 1,518,713,872,005.44/1,414,132
  6. Step 6: Final answer
    x = 1,073,954.82

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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.