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Finding the Fourth Proportional to 296,468.45, 408,740.40 and 188,999.27

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Solution

The fourth proportional to 296,468.45, 408,740.40 and 188,999.27 is: 260,572.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,468.45 : 408,740.40 = 188,999.27 : x
  2. Step 2: Convert to fraction form
    296,468.45/408,740.40 = 188,999.27/x
  3. Step 3: Cross multiply
    296,468.45x = 408,740.40 × 188,999.27
  4. Step 4: Simplify right side
    296,468.45x = 77,251,635,175.81
  5. Step 5: Solve for x
    x = 77,251,635,175.81/296,468.45
  6. Step 6: Final answer
    x = 260,572.88

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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.