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Finding the Fourth Proportional to 617,171.62, 925,831.50 and 217,730.02

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Solution

The fourth proportional to 617,171.62, 925,831.50 and 217,730.02 is: 326,621.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,171.62 : 925,831.50 = 217,730.02 : x
  2. Step 2: Convert to fraction form
    617,171.62/925,831.50 = 217,730.02/x
  3. Step 3: Cross multiply
    617,171.62x = 925,831.50 × 217,730.02
  4. Step 4: Simplify right side
    617,171.62x = 201,581,311,011.63
  5. Step 5: Solve for x
    x = 201,581,311,011.63/617,171.62
  6. Step 6: Final answer
    x = 326,621.16

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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.