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Finding the Fourth Proportional to 379,807.96, 524,121.24 and 207,720.04

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Solution

The fourth proportional to 379,807.96, 524,121.24 and 207,720.04 is: 286,646.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,807.96 : 524,121.24 = 207,720.04 : x
  2. Step 2: Convert to fraction form
    379,807.96/524,121.24 = 207,720.04/x
  3. Step 3: Cross multiply
    379,807.96x = 524,121.24 × 207,720.04
  4. Step 4: Simplify right side
    379,807.96x = 108,870,484,937.65
  5. Step 5: Solve for x
    x = 108,870,484,937.65/379,807.96
  6. Step 6: Final answer
    x = 286,646.14

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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.