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Finding the Fourth Proportional to 570,198.29, 855,487.44 and 191,156.49

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Solution

The fourth proportional to 570,198.29, 855,487.44 and 191,156.49 is: 286,798.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,198.29 : 855,487.44 = 191,156.49 : x
  2. Step 2: Convert to fraction form
    570,198.29/855,487.44 = 191,156.49/x
  3. Step 3: Cross multiply
    570,198.29x = 855,487.44 × 191,156.49
  4. Step 4: Simplify right side
    570,198.29x = 163,531,976,269.49
  5. Step 5: Solve for x
    x = 163,531,976,269.49/570,198.29
  6. Step 6: Final answer
    x = 286,798.44

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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.