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Finding the Fourth Proportional to 873,712.83, 1,310,568.12 and 274,726.38

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Solution

The fourth proportional to 873,712.83, 1,310,568.12 and 274,726.38 is: 412,089.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,712.83 : 1,310,568.12 = 274,726.38 : x
  2. Step 2: Convert to fraction form
    873,712.83/1,310,568.12 = 274,726.38/x
  3. Step 3: Cross multiply
    873,712.83x = 1,310,568.12 × 274,726.38
  4. Step 4: Simplify right side
    873,712.83x = 360,047,635,351.01
  5. Step 5: Solve for x
    x = 360,047,635,351.01/873,712.83
  6. Step 6: Final answer
    x = 412,089.22

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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.