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Finding the Fourth Proportional to 406,381.92, 609,670.20 and 169,592.88

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Solution

The fourth proportional to 406,381.92, 609,670.20 and 169,592.88 is: 254,429.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,381.92 : 609,670.20 = 169,592.88 : x
  2. Step 2: Convert to fraction form
    406,381.92/609,670.20 = 169,592.88/x
  3. Step 3: Cross multiply
    406,381.92x = 609,670.20 × 169,592.88
  4. Step 4: Simplify right side
    406,381.92x = 103,395,725,068.18
  5. Step 5: Solve for x
    x = 103,395,725,068.18/406,381.92
  6. Step 6: Final answer
    x = 254,429.93

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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.