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Finding the Fourth Proportional to 668,787.36, 922,839.84 and 382,326.24

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Solution

The fourth proportional to 668,787.36, 922,839.84 and 382,326.24 is: 527,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,787.36 : 922,839.84 = 382,326.24 : x
  2. Step 2: Convert to fraction form
    668,787.36/922,839.84 = 382,326.24/x
  3. Step 3: Cross multiply
    668,787.36x = 922,839.84 × 382,326.24
  4. Step 4: Simplify right side
    668,787.36x = 352,825,886,149.40
  5. Step 5: Solve for x
    x = 352,825,886,149.40/668,787.36
  6. Step 6: Final answer
    x = 527,560.64

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1.5x scale

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.