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Finding the Fourth Proportional to 294,511.20, 406,427.40 and 167,188.92

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Solution

The fourth proportional to 294,511.20, 406,427.40 and 167,188.92 is: 230,721.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    294,511.20 : 406,427.40 = 167,188.92 : x
  2. Step 2: Convert to fraction form
    294,511.20/406,427.40 = 167,188.92/x
  3. Step 3: Cross multiply
    294,511.20x = 406,427.40 × 167,188.92
  4. Step 4: Simplify right side
    294,511.20x = 67,950,158,064.41
  5. Step 5: Solve for x
    x = 67,950,158,064.41/294,511.20
  6. Step 6: Final answer
    x = 230,721.81

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1.5x scale

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.