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Finding the Fourth Proportional to 441,421.92, 662,292.72 and 272,745.36

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Solution

The fourth proportional to 441,421.92, 662,292.72 and 272,745.36 is: 409,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,421.92 : 662,292.72 = 272,745.36 : x
  2. Step 2: Convert to fraction form
    441,421.92/662,292.72 = 272,745.36/x
  3. Step 3: Cross multiply
    441,421.92x = 662,292.72 × 272,745.36
  4. Step 4: Simplify right side
    441,421.92x = 180,637,266,341.78
  5. Step 5: Solve for x
    x = 180,637,266,341.78/441,421.92
  6. Step 6: Final answer
    x = 409,216.80

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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.