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Finding the Fourth Proportional to 576,142.80, 863,726.19 and 238,973.01

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Solution

The fourth proportional to 576,142.80, 863,726.19 and 238,973.01 is: 358,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,142.80 : 863,726.19 = 238,973.01 : x
  2. Step 2: Convert to fraction form
    576,142.80/863,726.19 = 238,973.01/x
  3. Step 3: Cross multiply
    576,142.80x = 863,726.19 × 238,973.01
  4. Step 4: Simplify right side
    576,142.80x = 206,407,247,440.13
  5. Step 5: Solve for x
    x = 206,407,247,440.13/576,142.80
  6. Step 6: Final answer
    x = 358,257.10

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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.