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Finding the Fourth Proportional to 406,339.88, 609,531.69 and 169,444.04

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Solution

The fourth proportional to 406,339.88, 609,531.69 and 169,444.04 is: 254,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,339.88 : 609,531.69 = 169,444.04 : x
  2. Step 2: Convert to fraction form
    406,339.88/609,531.69 = 169,444.04/x
  3. Step 3: Cross multiply
    406,339.88x = 609,531.69 × 169,444.04
  4. Step 4: Simplify right side
    406,339.88x = 103,281,512,061.63
  5. Step 5: Solve for x
    x = 103,281,512,061.63/406,339.88
  6. Step 6: Final answer
    x = 254,175.18

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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.