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Finding the Fourth Proportional to 576,018.40, 863,336.40 and 295,391.20

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Solution

The fourth proportional to 576,018.40, 863,336.40 and 295,391.20 is: 442,732.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,018.40 : 863,336.40 = 295,391.20 : x
  2. Step 2: Convert to fraction form
    576,018.40/863,336.40 = 295,391.20/x
  3. Step 3: Cross multiply
    576,018.40x = 863,336.40 × 295,391.20
  4. Step 4: Simplify right side
    576,018.40x = 255,021,975,199.68
  5. Step 5: Solve for x
    x = 255,021,975,199.68/576,018.40
  6. Step 6: Final answer
    x = 442,732.34

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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.