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Finding the Fourth Proportional to 426,496.94, 639,733.04 and 173,714.93

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Solution

The fourth proportional to 426,496.94, 639,733.04 and 173,714.93 is: 260,567.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,496.94 : 639,733.04 = 173,714.93 : x
  2. Step 2: Convert to fraction form
    426,496.94/639,733.04 = 173,714.93/x
  3. Step 3: Cross multiply
    426,496.94x = 639,733.04 × 173,714.93
  4. Step 4: Simplify right side
    426,496.94x = 111,131,179,245.48
  5. Step 5: Solve for x
    x = 111,131,179,245.48/426,496.94
  6. Step 6: Final answer
    x = 260,567.35

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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.