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Finding the Fourth Proportional to 406,268.88, 609,070.84 and 153,405.92

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Solution

The fourth proportional to 406,268.88, 609,070.84 and 153,405.92 is: 229,983.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,268.88 : 609,070.84 = 153,405.92 : x
  2. Step 2: Convert to fraction form
    406,268.88/609,070.84 = 153,405.92/x
  3. Step 3: Cross multiply
    406,268.88x = 609,070.84 × 153,405.92
  4. Step 4: Simplify right side
    406,268.88x = 93,435,072,555.37
  5. Step 5: Solve for x
    x = 93,435,072,555.37/406,268.88
  6. Step 6: Final answer
    x = 229,983.34

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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.