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Finding the Fourth Proportional to 625,216.84, 936,756.78 and 446,812.36

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Solution

The fourth proportional to 625,216.84, 936,756.78 and 446,812.36 is: 669,454.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,216.84 : 936,756.78 = 446,812.36 : x
  2. Step 2: Convert to fraction form
    625,216.84/936,756.78 = 446,812.36/x
  3. Step 3: Cross multiply
    625,216.84x = 936,756.78 × 446,812.36
  4. Step 4: Simplify right side
    625,216.84x = 418,554,507,617.80
  5. Step 5: Solve for x
    x = 418,554,507,617.80/625,216.84
  6. Step 6: Final answer
    x = 669,454.95

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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.