Home / 629,814.07-943,787.98-518,286.79

Finding the Fourth Proportional to 629,814.07, 943,787.98 and 518,286.79

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Solution

The fourth proportional to 629,814.07, 943,787.98 and 518,286.79 is: 776,662.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,814.07 : 943,787.98 = 518,286.79 : x
  2. Step 2: Convert to fraction form
    629,814.07/943,787.98 = 518,286.79/x
  3. Step 3: Cross multiply
    629,814.07x = 943,787.98 × 518,286.79
  4. Step 4: Simplify right side
    629,814.07x = 489,152,842,594.78
  5. Step 5: Solve for x
    x = 489,152,842,594.78/629,814.07
  6. Step 6: Final answer
    x = 776,662.30

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1.5x scale

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.