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Finding the Fourth Proportional to 452,175.05, 623,978.64 and 268,421.47

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Solution

The fourth proportional to 452,175.05, 623,978.64 and 268,421.47 is: 370,408.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,175.05 : 623,978.64 = 268,421.47 : x
  2. Step 2: Convert to fraction form
    452,175.05/623,978.64 = 268,421.47/x
  3. Step 3: Cross multiply
    452,175.05x = 623,978.64 × 268,421.47
  4. Step 4: Simplify right side
    452,175.05x = 167,489,262,237.45
  5. Step 5: Solve for x
    x = 167,489,262,237.45/452,175.05
  6. Step 6: Final answer
    x = 370,408.02

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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.