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Finding the Fourth Proportional to 487,785.62, 673,127.00 and 269,994.72

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Solution

The fourth proportional to 487,785.62, 673,127.00 and 269,994.72 is: 372,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,785.62 : 673,127.00 = 269,994.72 : x
  2. Step 2: Convert to fraction form
    487,785.62/673,127.00 = 269,994.72/x
  3. Step 3: Cross multiply
    487,785.62x = 673,127.00 × 269,994.72
  4. Step 4: Simplify right side
    487,785.62x = 181,740,735,423.64
  5. Step 5: Solve for x
    x = 181,740,735,423.64/487,785.62
  6. Step 6: Final answer
    x = 372,583.21

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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.