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Finding the Fourth Proportional to 569,816.46, 786,385.94 and 328,162.68

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Solution

The fourth proportional to 569,816.46, 786,385.94 and 328,162.68 is: 452,887.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    569,816.46 : 786,385.94 = 328,162.68 : x
  2. Step 2: Convert to fraction form
    569,816.46/786,385.94 = 328,162.68/x
  3. Step 3: Cross multiply
    569,816.46x = 786,385.94 × 328,162.68
  4. Step 4: Simplify right side
    569,816.46x = 258,062,515,943.91
  5. Step 5: Solve for x
    x = 258,062,515,943.91/569,816.46
  6. Step 6: Final answer
    x = 452,887.09

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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.