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Finding the Fourth Proportional to 581,807.21, 802,898.77 and 327,156.17

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Solution

The fourth proportional to 581,807.21, 802,898.77 and 327,156.17 is: 451,478.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,807.21 : 802,898.77 = 327,156.17 : x
  2. Step 2: Convert to fraction form
    581,807.21/802,898.77 = 327,156.17/x
  3. Step 3: Cross multiply
    581,807.21x = 802,898.77 × 327,156.17
  4. Step 4: Simplify right side
    581,807.21x = 262,673,284,855.13
  5. Step 5: Solve for x
    x = 262,673,284,855.13/581,807.21
  6. Step 6: Final answer
    x = 451,478.22

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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.