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Finding the Fourth Proportional to 874,405.80, 1,310,010.21 and 633,924.11

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Solution

The fourth proportional to 874,405.80, 1,310,010.21 and 633,924.11 is: 949,727.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,405.80 : 1,310,010.21 = 633,924.11 : x
  2. Step 2: Convert to fraction form
    874,405.80/1,310,010.21 = 633,924.11/x
  3. Step 3: Cross multiply
    874,405.80x = 1,310,010.21 × 633,924.11
  4. Step 4: Simplify right side
    874,405.80x = 830,447,060,631.68
  5. Step 5: Solve for x
    x = 830,447,060,631.68/874,405.80
  6. Step 6: Final answer
    x = 949,727.30

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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.