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Finding the Fourth Proportional to 586,165.50, 808,908.39 and 331,511.22

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Solution

The fourth proportional to 586,165.50, 808,908.39 and 331,511.22 is: 457,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,165.50 : 808,908.39 = 331,511.22 : x
  2. Step 2: Convert to fraction form
    586,165.50/808,908.39 = 331,511.22/x
  3. Step 3: Cross multiply
    586,165.50x = 808,908.39 × 331,511.22
  4. Step 4: Simplify right side
    586,165.50x = 268,162,207,237.14
  5. Step 5: Solve for x
    x = 268,162,207,237.14/586,165.50
  6. Step 6: Final answer
    x = 457,485.48

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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.