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Finding the Fourth Proportional to 417,859.20, 625,867.20 and 362,563.20

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Solution

The fourth proportional to 417,859.20, 625,867.20 and 362,563.20 is: 543,045.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,859.20 : 625,867.20 = 362,563.20 : x
  2. Step 2: Convert to fraction form
    417,859.20/625,867.20 = 362,563.20/x
  3. Step 3: Cross multiply
    417,859.20x = 625,867.20 × 362,563.20
  4. Step 4: Simplify right side
    417,859.20x = 226,916,414,807.04
  5. Step 5: Solve for x
    x = 226,916,414,807.04/417,859.20
  6. Step 6: Final answer
    x = 543,045.16

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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.