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Finding the Fourth Proportional to 713,859.84, 1,068,685.88 and 625,286.32

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Solution

The fourth proportional to 713,859.84, 1,068,685.88 and 625,286.32 is: 936,086.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,859.84 : 1,068,685.88 = 625,286.32 : x
  2. Step 2: Convert to fraction form
    713,859.84/1,068,685.88 = 625,286.32/x
  3. Step 3: Cross multiply
    713,859.84x = 1,068,685.88 × 625,286.32
  4. Step 4: Simplify right side
    713,859.84x = 668,234,661,141.16
  5. Step 5: Solve for x
    x = 668,234,661,141.16/713,859.84
  6. Step 6: Final answer
    x = 936,086.64

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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.