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Finding the Fourth Proportional to 616,864.92, 925,303.92 and 217,431.24

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Solution

The fourth proportional to 616,864.92, 925,303.92 and 217,431.24 is: 326,149.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,864.92 : 925,303.92 = 217,431.24 : x
  2. Step 2: Convert to fraction form
    616,864.92/925,303.92 = 217,431.24/x
  3. Step 3: Cross multiply
    616,864.92x = 925,303.92 × 217,431.24
  4. Step 4: Simplify right side
    616,864.92x = 201,189,978,702.46
  5. Step 5: Solve for x
    x = 201,189,978,702.46/616,864.92
  6. Step 6: Final answer
    x = 326,149.17

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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.